String or null

Email: [email protected]

Telephone: +27-12-541-1797

Dimension: 2400 mm

Dimension: 2800 mm

Detail dimension: 4000 mm

Duct size: 1800 mm

Floor duct type: DB DB

Duct diameter: 12 mm

Components: workbench and battery rack

Component type: container ducts

The specification references ICAO Annex 10 Volume 1 Part 1 (Attachments C and F) and Part 2 (Chapter 4, Section 4.2), and ICAO Annex 14 Volume 1 Chapter 4 Section 4.1 for obstacle limitation surfaces. Also references ICAO Doc 8071 Volume 1 (Manual on Testing of Radio Navigation Aids) and Doc 9157 Part 6 (Chapters 4 and 6 on frangibility design and numerical simulation).

Closing date and time: 13 November 2026 at 12:00

Scope: Replacement of Instrument Landing Systems (ILS) at OR Tambo International Airport, including VHF localizer and UHF glide path equipment, associated monitor systems, remote control and indicator equipment, and distance measuring equipment (DME) for glide path verification.

Compliance: ICAO Annex 10, Facility Performance Category III for both localizer and glide path.

Localizer key requirements:

• Coverage: 46.3 km (25 NM) within ±10° from front course line; 31.5 km (17 NM) between 10° and 35°; 18.5 km (10 NM) beyond ±35° (reducible to 33.3 km and 18.5 km where alternative navigation exists).
• Field strength: ≥40 µV/m (−114 dBW/m²) in coverage volume; Category III requires ≥100 µV/m (−106 dBW/m²) at 18.5 km increasing to ≥200 µV/m (−100 dBW/m²) at 6 m above threshold, then ≥100 µV/m along runway at 4 m height.
• Course alignment: mean course line within ±3 m (10 ft) of runway centre line at ILS reference datum.
• Displacement sensitivity: nominal 0.00145 DDM/m (0.00044 DDM/ft) at reference datum, maintained within ±10%.
• Modulation: 90 Hz and 150 Hz tones at 20% nominal depth (18–22% limits); frequency tolerances ±1% for Category III; harmonic content ≤10% (second harmonic of 90 Hz ≤5% for Cat III); phase locking within 10° for Cat III.
• Monitoring: automatic monitor warns designated control points and ceases radiation/removes navigation components within 2 seconds for Category III if course shift >6 m, power reduction >50% (single-frequency) or >20% (two-frequency), or displacement sensitivity change >17%.
• Integrity: probability of not radiating false guidance ≥1−0.5×10⁻⁹ per landing.
• Continuity: probability of not losing signal >1−2×10⁻⁶ per 30 seconds (4000 hours MTBO).

Glide path key requirements:

• Glide path angle: 3° nominal, adjusted/maintained within ±0.04° for Category III.
• Coverage: ±8° azimuth to 18.5 km (10 NM), up to 1.75θ and down to 0.45θ (0.30θ for intercept).
• Field strength: ≥400 µV/m (−95 dBW/m²) down to 15 m (50 ft) above threshold for Category II/III.
• Displacement sensitivity: nominal DDM 0.0875 at 0.12θ ±0.02θ; maintained within ±15%.
• Modulation: 90 Hz and 150 Hz at 40% nominal depth (37.5–42.5%); frequency tolerance ±1% for Cat III; harmonic content ≤10% (second harmonic of 90 Hz ≤5%); phase locking within 10° for Cat III.
• Monitoring: automatic monitor ceases radiation within 2 seconds for Categories II/III if glide path angle shift >−0.075θ to +0.10θ, power reduction >50% (single) or >20% (two-frequency), displacement sensitivity change >25%, or DDM reduction below 0.175 in coverage.
• Integrity: probability of not radiating false guidance ≥1−0.5×10⁻⁹ per landing.
• Continuity: probability of not losing signal >1−2×10⁻⁶ per 15 seconds (2000 hours MTBO).

Frequency pairing: localizer and glide path frequencies paired per ICAO Annex 10 list.

Environmental requirements:

• Wind resistance: DME antenna structures withstand 160 km/h operational (200 km/h survival, 144 km/h with 1.5 cm ice).
• Ice loading: up to 5 cm thickness without damage to shelters and antenna structures.
• Antenna covers: fibreglass-reinforced polyester.
• Indoor equipment: −10°C to +55°C; humidity <95% (−10 to 35°C), <60% (35–55°C).
• Outdoor equipment: −40°C to +70°C; humidity up to 100%.
• Outdoor elements withstand salt, rain, hail, thunderstorms, small/medium animals.
• Temperature variation: up to 20°C within 24 hours.

Remote display:

• Remote control input device for monitor/transmitter parameter changes.
• Same software used for local and remote maintenance.
• Remote trend analysis and fault analysis capability.
• Interfaces for external data readout and input.
• Monitoring indications: mains status, subsystem status, transmitter data, monitor data, automatic recording of main status changes.

Referenced standards: ICAO Annex 10, Doc 8071, Doc 9157, Annex 14; EN 300 339, EN 50081-1/2, EN 60950; MIL-HDBK-217; R&TTE Directive 1999/5/EC; CCITT V.22 bis; RS-232; ASTM A123; RAL STD Colors.

Methodology references: Definitions of ILS Points A-E and reference datum T. Localizer general requirements: radiation pattern with 90/150 Hz tones, tone predominance sides, horizontal angles from antenna centre. Coverage: localizer coverage sector distances (46.3 km within ±10°, 31.5 km 10–35°, 18.5 km beyond 35°), receivable heights (600 m above threshold or 300 m above highest point), field strength minima (40 µV/m, 100 µV/m for Cat III on glide path).

Quality management references: ICAO Doc 8071 Volume 1 (Manual on Testing of Radio Navigation Aids) and EU Directive 89/336/EEC (Electromagnetic Compatibility).

Health and safety standards: EN 300 339 V1.1.1 (EMC for radio equipment), EN 50081-2 (generic immunity), EN 50081-1 (generic emission), EN 60950 (safety of IT equipment). Also includes ILS glide path sector definition and localizer identification signal transmission requirements. Environmental requirement: ice loads up to 5 cm thickness shall not damage shelter and antenna structures.

Environmental requirements: Wind resistance: DME antenna structures withstand 160 km/h operational (200 km/h survival, 144 km/h with 1.5 cm ice). Ice loading: up to 5 cm thickness no damage. Antenna covers: fibreglass-reinforced polyester. Indoor equipment: −10°C to +55°C, humidity <95% (−10 to 35°C), <60% (35–55°C). Outdoor equipment: −40°C to +70°C, humidity up to 100%. Outdoor elements withstand salt, rain, hail, thunderstorms, small/medium animals. Temperature variation: up to 20°C within 24 hours. Remote display: remote control input device for monitor/transmitter parameters; same software for local/remote maintenance; remote trend/fault analysis; external data interfaces; monitoring indications: mains status, subsystem status, transmitter data, monitor data, automatic recording of main status changes. Communication standards: CCITT V.22 bis (2400 bps modem), RS-232.

Contractual terms incorporate ICAO Annex 10 basic requirements: ILS components (VHF localizer, UHF glide path, glide path verification means, DME); remote status indications for Category II/III at air traffic services unit; construction ensuring similar indications across installations; Category III components comply with Category I/II standards plus supplements; high probability of operation within performance requirements; interlocks for opposite-end localizers (only approach-direction localizer radiates); interlocks for same-frequency facilities (only one radiates, 20-second suppression during switch).

This section contains definitions of ILS terms such as angular displacement sensitivity, back course sector, course line, course sector, DDM, Facility Performance Category III, front/half course sector, half ILS glide path sector, ILS continuity of service, ILS glide path, glide path angle, ILS glide path sector, ILS integrity, ILS Points A-E, ILS reference datum (Point T), two-frequency glide path and localizer systems. No evaluation criteria for bids are provided.

Service report for ILS OTN network:

• RSX ptp services across multiple LOC and GP runway identifiers with port mappings
• VOICE services at LOC 21L and GP 21L
• IO Bus services with DME 03R warning and normal status
• ET100 services including AWOS ETH and ATNS LAN
• Detailed port mappings across ILS213 nodes and IFC interfaces

This document (D109MAN Version 1, revised 12 March 2024) sets out the standards and guidelines for Instrument Landing Systems (ILS) at Airports Company South Africa (ACSA) airports. It provides minimum requirements for design, installation, commissioning, and maintenance of ILS and associated systems (DME, Power Supplies, HVAC). The ILS is a precision approach navigational aid required by ICAO Annex 10 and SACAA CATS 139 for aircraft guidance during bad weather and low visibility operations. The standard aims to achieve lifecycle management, technology management, maintenance ease, training standardisation, and equipment performance predictability across ACSA airports. It applies to all ACSA-owned airports and must be used with applicable codes, regulations, and industry standards, which take precedence in case of conflict.

Returnable documents required at tender stage:

• Evidence of System Compliance with ICAO Annex 10
• Evidence of System Performance per ICAO Annex 10
• Point-to-point statement of compliance with this specification
• Reliability statistics and targets (Availability, MTBF, MTTR)
• Evidence of minimum 99.8% availability
• Assurance letter for back-to-back maintenance contract with ACSA maintenance contractor
• Assurance letter for support throughout equipment lifespan (15 years)
• Evidence of ISO 9000/ISO 9001 Quality Management System certification
• Evidence of burn-in testing for ILS components
• Evidence of at least one previous ILS installation with ground and flight tests per ICAO Doc 8071
• Guarantee based on other installations, technology performance and global footprint
• Professional Electronic Engineer/Technologist registration (ECSA) for sign-off

Handover deliverables (post-installation):

• As-built drawings signed by Professional Electronic Engineer/Technologist
• DWG soft copies of drawings
• Installation Certificate
• Commissioning Certificate
• Acceptance Certificate
• FMEA Report
• Maintenance and Operating Manuals
• List of Critical Spares with OEM names and part numbers
• Warranty Documentation
• Certificates of Compliance
• CMMS Data and proof of asset loading
• Training records for Operator and Maintenance Personnel
• PDF Datasheets of all equipment installed
• PDF schedule of all equipment installed

Tender-stage returnable documents:

• Evidence of System Compliance with ICAO Annex 10
• Evidence of System Performance per ICAO Annex 10
• Point-to-point statement of compliance with this specification
• Reliability statistics and targets (Availability, MTBF, MTTR)
• Evidence of minimum 99.8% availability
• Assurance letter for back-to-back maintenance contract with ACSA maintenance contractor
• Assurance letter for 15-year equipment support
• ISO 9000/9001 QMS certification evidence
• Evidence of manufacturing under QMS
• Burn-in testing evidence for ILS components
• Evidence of at least one previous ILS installation with ground/flight tests per ICAO Doc 8071
• Guarantee based on other installations, technology performance, global footprint
• Professional Electronic Engineer/Technologist registration (ECSA)

Post-installation handover documents:

• As-built drawings signed by Professional Electronic Engineer/Technologist (ECSA)
• DWG soft copies of drawings
• Installation Certificate
• Commissioning Certificate
• Acceptance Certificate
• FMEA Report
• Maintenance and Operating Manuals
• List of Critical Spares with OEM names and part numbers
• Warranty Documentation
• Certificates of Compliance
• CMMS Data and proof of asset loading
• Training records for Operator and Maintenance Personnel
• PDF Datasheets of all equipment installed
• PDF schedule of all equipment installed

Mandatory technical compliance requirements (pass/fail):

• ILS system compliant with ICAO Annex 10 SARPs for required Facility Performance Category
• System comprises VHF localizer, UHF glide path, DME, monitor systems, remote control/indicator equipment
• Secondary power supply with minimum 4 hours autonomy
• Localizer far field and near field monitoring equipment
• Glide path near field monitoring equipment
• Remote-Control Status Unit (RCSU) and Control Tower Unit (CTU) with replica interlocked for ATC-only operation
• Control tower status indicator with integrated ILS changeover switch
• Fibre link redundancy with automatic loop-back
• Minimum availability 99.8%
• Equipment lifespan 15 years with after-sales support and spares
• Environmental compliance: indoor -10°C to +55°C, outdoor -40°C to +70°C, humidity, ice, wind, temperature variation
• Frangible equipment within 900m of threshold per ICAO Doc 9157
• Antistatic shelter flooring connected to grounding
• Shelter painting per ICAO Annex 14
• Obstacle management and SACAA approval via WGS coordinates
• Aeronautical information dissemination per ICAO Annex 15
• Quality: ISO 9000/9001 certification, burn-in testing
• Testing: Factory tests witnessed, ground/flight tests per ICAO Doc 8071
• Training: Maintenance and operator certification
• Warranty: 1 year including early failure costs
• Professional sign-off by ECSA-registered engineer/technologist

No explicit scoring split, minimum qualifying score, or preference point system (80/20 or 90/10) stated in this document.

Scope: Replacement of Instrument Landing Systems at OR Tambo International Airport for period not exceeding 36 months. Applies to ILS and associated systems (DME, Power Supplies, HVAC) at ACSA airports.

Design Basis: Radio navigation precision approach and landing during bad weather and low visibility operations.

Design Considerations: ICAO Annex 10, ICAO Doc 8071, Site Specific Requirements, Municipal by-laws, SACAA Regulations and Technical Standards, ATNS Requirements.

Performance Requirements:

• Minimum Availability: 99.8%
• Life span: 15 years including after-sales support and spares

Functional Requirements (ICAO Annex 10 SARPs):

• ILS compliant with Facility Performance Category
• Components: VHF localizer with monitor/remote control, UHF glide path with monitor/remote control, DME for glide path verification
• Control tower status information without delay
• Secondary power supply (minimum 4 hours)
• Localizer far field and near field monitoring
• Glide path near field monitoring
• RCSU and CTU with replica interlocked for ATC-only operation
• Control tower status indicator with integrated changeover switch
• Fibre link redundancy with automatic loop-back

Evidence Requirements at Tender:

• System compliance with non-site-specific ICAO Annex 10 SARPs (demonstration + theoretical analysis)
• Theoretical continuity of service analysis per ICAO Annex 10
• Guarantee of continuity compliance based on other installations/global footprint
• Integrity analysis for intended category
• Evidence of previous same-system installations compliant with ICAO Annex 10

Environmental Requirements:

• Indoor equipment: -10°C to +55°C, humidity up to 95% (-10°C to +35°C), 60% (full range)
• Outdoor equipment: -40°C to +70°C, humidity up to 100%
• Ice loads up to 5cm/50mm
• Resistance to salt, rain, hail, thunderstorms, small/medium animals
• Temperature variation up to 20°C within 24 hours
• Wind: operational up to 160 km/h, survival 200 km/h with 15mm ice

Reliability, Availability, Maintainability:

• Reliability statistics: Availability, MTBF, MTTR
• Minimum 99.8% availability evidence
• Maintenance training and certification for ACSA personnel
• Operator training for ATC personnel
• Back-to-back maintenance contract assurance
• 15-year support guarantee

Quality Requirements:

• ISO 9000/9001 QMS certification evidence
• Manufacturing under QMS
• Burn-in testing for critical components

Warranty: 1 year covering early equipment failure costs

Site Integration:

• Topographical/positioning survey for terrain variation
• System configuration to eliminate terrain/obstruction influence
• Detailed survey report
• Assessment of AGL, navaids, siting, scalloping, ground/flight test procedures
• Obstacle marking/painting per ICAO Annex 14
• Frangible equipment within 900m of threshold (ICAO Doc 9157)
• Civil works for shelters, structures, cabling
• Maintain existing ILS positions where possible
• SACAA obstacle approval via WGS coordinates
• Antistatic shelter flooring grounded
• Shelter painting: inner white, outer warning colours per ICAO Annex 14

Critical/Sensitive Areas: Defined per ICAO Annex 10 Vol 1 with OEM/site survey, demarcated with non-RF reflective material

Obstacles: Aerodrome perimeter survey, notification to ACSA/ATNS/SACAA per SA-CAR Part 139.01.30

Aeronautical Information: ICAO Annex 15 compliance, dissemination via AICs, NOTAMs, AIP through SACAA AIS

Disposal: Per relevant regulations, codes, best practices, ACSA policies

Electrical: SANS 10142-1 compliance, 230 VAC ±10%, 50 Hz ±1%, surge protection, earthing per soil characteristics, lightning protection per SANS 1063/10142-1

Backup Power: 4 hours minimum, battery deep discharge protection, 2 independent PSUs sharing common battery/bus bar

Mechanical: Electronic equipment in single cabinet

Deliverable Design Information (FIPDM Stage 3/4):

• Evidence of System Compliance/Performance with Annex 10
• Point-to-point compliance statement
• Detailed Design & Operating philosophy
• Minimum spare holding requirements
• OEM critical spares guarantee for equipment life
• Exact spares numbers based on other installations
• Maintenance schedule
• Operating manual
• Personnel qualifications/experience/skills
• Electrical drawings
• Civil engineering designs/drawings

Commissioning: Testing per ICAO Doc 8071, factory tests witnessed, ground/flight tests, evidence of previous compliant installation

Handover: As-built drawings (ECSA sign-off), certificates, FMEA, manuals, spares list, warranty, compliance certificates, CMMS data, training records, datasheets, equipment schedule

CMMS Data Format: Asset info (description, model, manufacturer, serial, building, location), Failure info (description, cause, resolution), Maintenance info (type, frequency, tasks with description, skills, time, tools)

Design Basis: Radio navigation precision approach and landing during bad weather/low visibility operations.

Design Considerations: ICAO Annex 10, ICAO Doc 8071, Site Specific Requirements, Municipal by-laws, SACAA Regulations/Technical Standards, ATNS Requirements.

Functional Requirements: ILS compliant with ICAO Annex 10 SARPs including VHF localizer, UHF glide path, DME, monitor systems, remote control/indicator equipment, secondary power supply (4 hours minimum), far/near field monitoring, RCSU/CTU with ATC-interlocked replica, control tower status indicator with changeover switch, fibre link redundancy with automatic loop-back.

Design Trade-offs: Capital/operational costs balanced against requirements; OEM recommendations/simulations/theoretical analysis/SME recommendations without compromising compliance.

Electrical: SANS 10142-1 compliance, 230 VAC ±10%, 50 Hz ±1%, surge protection, earthing per soil characteristics, lightning protection per SANS 1063/10142-1.

Backup Power: 4 hours minimum, battery deep discharge protection, 2 independent PSUs sharing common battery/bus bar.

Mechanical: Electronic equipment in single cabinet.

Site Integration: Topographical survey, obstacle elimination, frangible equipment within 900m threshold (ICAO Doc 9157), WGS coordinates for SACAA approval, antistatic shelter flooring, ICAO Annex 14 painting.

Aeronautical Information: ICAO Annex 15 compliance, dissemination via AICs, NOTAMs, AIP through SACAA AIS.

Disposal: Per regulations, codes, best practices, ACSA policies.

Tenderer must provide:

• Evidence of compliance with ICAO Annex 10 SARPs from previous ILS installations of the same system
• Evidence of at least one previous installation where ground and flight tests were conducted per ICAO Doc 8071
• Guarantee based on evidence of other installations, technology performance, and global footprint that continuity of service meets ICAO Annex 10 SARPs for site-specific requirements
• Reliability statistics and targets (Availability, MTBF, MTTR) based on anticipated availability
• Assurance of ability to enter back-to-back maintenance contract with ACSA maintenance contractor
• Assurance letter for 15-year equipment support
• Qualifications, experience, and skills of personnel operating and maintaining equipment
• Professional Electronic Engineer or Professional Electronic Technologist (ECSA registered) for as-built drawing sign-off
• Maintenance training and certification for ACSA maintenance contractor personnel
• Operator training for Air Traffic Controller personnel

Quality Management System: Evidence of ISO 9000/ISO 9001 certification required. Manufacturing/production of ILS equipment must be under universally accepted QMS.

Burn-in testing: Evidence that ILS components have undergone burn-in tests or similar critical system tests during production.

Installation and Commissioning Testing: Per ICAO Doc 8071. Factory tests at manufacturer's factory witnessed by customer representative or approved by manufacturer's quality representative. Ground and flight tests per ICAO Doc 8071 guidelines including continuity of service evaluation at chosen site.

Previous installation evidence: At least one previous installation with ground/flight tests per ICAO Doc 8071 demonstrating Annex 10 SARPs compliance.

Handover documentation: As-built drawings signed by Professional Electronic Engineer/Technologist (ECSA), DWG soft copies, Installation/Commissioning/Acceptance Certificates, FMEA Report, Maintenance/Operating Manuals, Critical Spares List with OEM names/part numbers, Warranty Documentation, Certificates of Compliance, CMMS Data with asset loading proof, Training records, PDF Datasheets, PDF Equipment Schedule.

CMMS Data Format: Asset information (description, model, manufacturer, serial number, building, installation location/GPS), Failure information (description, cause, resolution), Maintenance information (type, frequency, tasks with description, skills required, time estimate, tools required).

Process monitoring: Self-assessment by Maintenance Engineering and Operational Governance, annual internal audits, three-year review cycle.

Non-conformance reporting: Per procedure Z001 001M with corrective/preventative measures.

Change control: Per procedure Z001 003M authorised by Group Executive: Strategy & Sustainability.

Records management: Per procedure Z001 008M.

Mandatory compliance requirements:

• CSD registration (implied for ACSA tenders)
• Valid tax compliance status (SARS)
• B-BBEE Level 1 minimum (per tender record)
• Professional registration: ECSA (Engineering Council of South Africa) for signatory engineer/technologist
• ISO 9000/9001 Quality Management System certification
• ICAO Annex 10 SARPs compliance for ILS system
• SACAA CATS 139 compliance
• SANS 10142-1 electrical compliance
• SANS 1063 lightning protection compliance
• ICAO Doc 8071 testing compliance
• ICAO Doc 9157 frangibility compliance
• ICAO Annex 14 obstacle marking/painting compliance
• ICAO Annex 15 aeronautical information compliance
• Municipal by-laws compliance
• ATNS requirements compliance
• SACAA obstacle approval via WGS coordinates
• Environmental operating ranges compliance
• 99.8% minimum availability
• 15-year equipment support guarantee
• 1-year warranty covering early failures
• Back-to-back maintenance contract capability with ACSA maintenance contractor
• Maintenance and operator training provision
• Burn-in testing evidence for critical components
• Previous ILS installation evidence with ICAO Doc 8071 ground/flight tests

Shelter safety: Floor covered with antistatic material connected to grounding systems to protect maintenance personnel from electric shock and prevent electronic equipment damage.

Shelter painting: Inner sides painted white, outer sides painted with warning colours per ICAO Annex 14.

Frangibility: ILS equipment within 900m of runway threshold must be frangible per ICAO Doc 9157; SACAA exemption required where not practically possible.

Obstacle management: New obstacles violating Obstacle Limitation Surfaces must be marked per ICAO Annex 14 and reported to SACAA via ACSA/ATNS.

Critical/Sensitive areas: Demarcated with non-RF reflective material to restrict moving objects; managed per ICAO Annex 10 Vol 1 to balance runway capacity and signal safety.

Environmental resilience: Equipment designed to withstand salt, rain, hail, thunderstorms, animal attacks without damage.

Electrical safety: Earthing per SANS 10142-1 considering soil characteristics, lightning protection per SANS 1063/10142-1, surge protection per equipment rating.

Backup power: Automatic protection against battery deep discharge.

Training: Maintenance personnel certified on new ILS system; ATC personnel operator training provided.

Operating environment requirements:

• Indoor equipment: Ambient temperature -10°C to +55°C; relative humidity up to 95% (-10°C to +35°C) and up to 60% (full temperature range)
• Outdoor equipment: Ambient temperature -40°C to +70°C; relative humidity up to 100%
• Ice loads: Shelter and antenna structures withstand up to 5cm/50mm
• Weather resistance: Salt, rain, hail, thunderstorms, small/medium animal attacks without damage or deformation
• Temperature variation: Equipment operates within specifications during variations up to 20°C within 24 hours
• Wind: Antenna structures designed for operation up to 160 km/h; survival up to 200 km/h with 15mm ice thickness
• Site weather data: Available from South African Weather Services (SAWS)
• Disposal: ILS components disposed per relevant regulations, codes, best practices, and ACSA policies
• Topographical survey: Required to assess terrain influence on navigation signals
• Obstacle management: Aerodrome perimeter survey to identify interference risks; SACAA notification per SA-CAR Part 139.01.30

Warranty: One (1) year warranty for ILS installations covering all costs related to early equipment failures.

Contractor assurance: Letter indicating support to ACSA maintenance contractor throughout equipment lifespan (15 years).

Maintenance contract: Bidder must provide assurance of ability to enter back-to-back maintenance contract with ACSA maintenance contractor for after-sales support to achieve target availability and reliability metrics.

Contract duration: Period not exceeding 36 months for replacement project at OR Tambo International Airport.

Design life: 15 years including after-sales support and spares.

Change control: Manual changes only with authorisation of Group Executive: Strategy & Sustainability per procedure Z001 003M.

Records: Maintained per procedure Z001 008M, identifiable, retrievable, with statutory retention periods.

Non-conformance: Deviations registered with corrective/preventative measures per procedure Z001 001M.

Monitoring: Self-assessment by Maintenance Engineering (Level 1) and Operational Governance (Level 2), annual internal audits, three-year review cycle.

Accountability: Group Executive: Capital Infrastructure & Asset Management (development), Group Executive: Operations Management (implementation).

Disposal: ILS components disposed per relevant regulations, codes, best practices, and ACSA policies.

Technical evaluation criteria (mandatory compliance):

• ILS system compliance with ICAO Annex 10 SARPs for required Facility Performance Category
• Complete system components: VHF localizer, UHF glide path, DME, monitor systems, remote control/indicator equipment
• Secondary power supply with minimum 4-hour autonomy
• Localizer far field and near field monitoring equipment
• Glide path near field monitoring equipment
• RCSU and CTU with replica interlocked for ATC-only operation
• Control tower status indicator with integrated ILS changeover switch
• Fibre link redundancy with automatic loop-back
• Minimum 99.8% availability with evidence
• 15-year equipment lifespan with after-sales support and spares
• Environmental compliance across all specified ranges
• Frangible equipment within 900m of threshold per ICAO Doc 9157
• Antistatic shelter flooring grounded
• Shelter painting per ICAO Annex 14
• Obstacle management with SACAA approval via WGS coordinates
• Aeronautical information dissemination per ICAO Annex 15
• ISO 9000/9001 QMS certification evidence
• Burn-in testing evidence for critical components
• Factory tests witnessed by customer representative
• Ground and flight tests per ICAO Doc 8071
• Evidence of at least one previous compliant installation
• Maintenance training and certification for ACSA personnel
• Operator training for ATC personnel
• Back-to-back maintenance contract assurance
• 15-year support guarantee
• 1-year warranty covering early failures
• Professional sign-off by ECSA-registered engineer/technologist

No scoring methodology, minimum qualifying score, or preference point system detailed in this document.

Assessment report for the OR Tambo International Airport Glide Path 03R scalloping problem. Scalloping developed from late 2013 to July 2014 and caused some aircraft flight management systems to disengage auto-coupled mode during approach, although the scalloping was within ICAO CAT II/III limits. The issue is associated with a building complex developed near the glide path. Flight inspection recordings and aerial imagery show no scalloping before construction, partial scalloping during construction, and the current condition after completion.

Indra Navia used computer simulations to investigate the cause and possible solutions for the ILS scalloping problem. A 3D terrain model was built from surveyed terrain data and simplified for simulation while preserving topology. The model was validated against flight inspection recordings, including an incorrect aiming point that produced a flare. Simulations identified the cause as edge-diffracted signal from the top rim of building walls facing the runway, combined with direct radiation, edge-diffracted signal from the beam-forming area edge, and ground-reflected signal. Options tested included optimizing M-Array glide path antenna feeds (increased scalloping), rotating antenna elements (increased scalloping), using a Watts GP5A antenna element (little improvement), and alternative null-reference or sideband-reference glide path systems (slightly reduced scalloping but introduced large bends near the threshold). The recommended solution is an approximately 18 m by 10 m metallic screen at the edge of the glide path beam-forming area, about 80 m forward of the glide path antenna and about 180 m from the runway centreline, oriented perpendicular to the direction to the antenna, to block direct signal and reduce edge-diffracted signal toward the buildings.

Scalloping problem developed from late 2013 to July 2014. Building complex developed in vicinity of Glide Path when problem emerged. Figure 1 shows no scalloping before construction started. Figure 2 shows partial scalloping during construction. Figure 3 shows current condition after construction completion. Computer simulation from 5th July 2014 correlates well with actual flight inspection recording, with scalloping appearing in same position and with same magnitude in both.

Indra Navia AS is located at Olaf Helsets vei 6, NO-0694 Oslo, Norway. Telephone: +47 2318 0200. Facsimile: +47 2318 0210.

Environmental terms and conditions (EMS 048) for maintenance contractors performing works at ACSA airports.

Environmental technical specifications for contractors:

• Comply with ACSA Environmental Policy (EMS 048); communicate and implement policy to all staff before work starts.
• Prevent contamination of storm water, soil, and groundwater; no solid or liquid material may pollute these resources.
• Clean up any pollution immediately; report spills to ACSA immediately; contractor bears clean-up costs.
• Equipment washing, maintenance, and refuelling only in designated service areas on ACSA property; contractor must locate these areas.
• No leaking equipment or vehicles permitted on airport.
• Minimise dust nuisance; reduce odours and emissions; no open fires on site.
• Minimise noise generation; comply with applicable noise regulations.
• Waste management: separate general and hazardous waste; dispose at permitted landfill sites if recycling/re-use not feasible; no dumping, burying, or burning of waste.
• Maintain tidy, litter-free work area.
• Keep records: waste contractor name, disposal site, monthly quantities (general, hazardous, recycled), waste manifests, safe disposal certificates, waste permit for disposal site; make available during audits.
• Hazardous chemical substances (HCS): clearly label, store, and handle per Material Safety Data Sheets (MSDS); keep MSDS with HCS.
• Clean up HCS spills immediately, dispose as hazardous waste, report to ACSA immediately.
• Ensure all contractors are informed on HCS handling and storage.
• Comply with all national, regional, and local legislation for transport, storage, use, and disposal of hazardous substances.
• Conserve water and energy; identify and manage activities causing wastage.
• Conduct training and awareness for all employees prior to commencing works.

Financial requirements from environmental annexure:

• Penalties for non-compliance: R200 to R20,000 per infringement, severity determined by ACSA's Airport Environmental Management Representative in consultation with Airport Manager; decision final.
• Contractor must bear all pollution clean-up costs.
• Contractor must make good any damage caused by infringement at own expense.
• Penalties do not replace legal proceedings by authorities or third parties.

Compliance requirements from environmental annexure:

• Contractors must comply with ACSA Environmental Policy (EMS 048) and all applicable environmental legislation.
• Maintain waste management records as specified (contractor name, disposal site, monthly reports, manifests, certificates, waste permit) for audit inspection.
• Handle and store hazardous chemical substances per MSDS; keep MSDS on site.
• Report all spills (general and HCS) to ACSA immediately.
• Ensure all personnel receive environmental training and awareness before starting work.
• Adhere to waste separation, disposal, and no-dumping rules.
• Use only designated service areas for equipment washing, maintenance, refuelling.
• No leaking equipment or vehicles on airport premises.
• Minimise dust, odours, emissions; no open fires.
• Comply with noise regulations.
• Conserve water and energy.

Procurement: Replacement of Instrument Landing Systems (ILS) at OR Tambo International Airport

Contract period: not exceeding 36 months

Client: Airports Company South Africa SOC Ltd (ACSA)

Location: OR Tambo International Airport, Gauteng

Scope: Supply, installation, testing, commissioning, and calibration of new ILS systems including localizer, glide path, DME, monitoring systems, RCSU/CTU integration, and full redundancy

Standards: ACSA D109 MAN Standards and Guidelines for Instrument Landing System requirements

Issue date: 2 October 2026

Compulsory briefing session: 16 October 2026 at 12:00PM via Microsoft Teams (link: https://teams.microsoft.com/meet/347422370285085?p=EoechdN7Nu17DxyUzZ)

Query closing date: 23 October 2026

Bid closing date and time: 13 November 2026 at 12:00PM

Compulsory briefing session:

• Date: 16 October 2026
• Time: 12:00PM
• Venue: Microsoft Teams (virtual)
• Link: https://teams.microsoft.com/meet/347422370285085?p=EoechdN7Nu17DxyUzZ
• Attendance register will be taken
• Failure to attend disqualifies bidder

Enquiries (both SCM and technical):

• Contact: Alicia Sekoati
• Role: Category Specialist
• Telephone: 011 723 1400
• Email: [email protected]

Submission address:

Tender Box C

Airports Company South Africa SOC Limited Offices

North Wing, 3rd Floor

OR Tambo International Airport

Postal address:

P O Box 75480

Gardenview

Gauteng, 2047

South Africa

General contact:

Tel: +27 11 723 1400

Fax: +27 11 453 9354

Website: www.airports.co.za

Submission method: physical delivery to Tender Box C

Submission address: Airports Company South Africa SOC Limited Offices, North Wing, 3rd Floor, OR Tambo International Airport

Closing date and time: 13 November 2026 at 12:00PM

Late bids: not accepted

Required copies: one original and one copy (both legal and binding)

Mandatory returnable documents:

• Signed Form of Offer and Acceptance (C1.1 of NEC contract)
• Attendance at compulsory briefing session (register taken at session)
• OEM confirmation of support verifying access to OEM technical support and spares (on OEM letterhead, domain, signature)
• Reference letter(s) for minimum one ILS maintenance/replacement/refurbishment/supply-installation project
• Site Manager/Project Manager CV with navigational aid project management experience and NQF Level 5 qualification
• Detailed Methodology and Program covering site survey, factory acceptance testing, site acceptance testing, installation and commissioning, flight calibration, spare parts acquisition, after-sales service, timelines within 36 months, interdependencies
• Technical specifications or brochure confirming ILS components
• Completed Section 4 of evaluation criteria (Technical specifications)
• Project Organogram
• Company profile
• B-BBEE Certificate and Scorecard or QSE/EME Affidavit
• Sub-contracting agreement (if claiming preference points)
• Tax PIN number (SARS)
• Certificate of Incorporation showing ownership split
• Central Supplier Database (CSD) Report
• VAT Questionnaire
• ACSA Terms and Conditions
• COIDA compliance
• Declaration of Interest and Politically Exposed Persons form
• SBD 4 Bidder's Disclosure Form
• SBD 6.1 Preference Points Claim Form
• Confidentiality and Non-Disclosure Agreement

Validity period: 120 business/working days (prices must remain firm)

Confidentiality: bidders must sign NDA; third-party consultants must also sign confidentiality agreements

Security vetting: may be required as ACSA is a National Key Point

Disqualification risks: late submission, unsigned/omitted mandatory forms, failure to attend briefing, missing OEM confirmation, functionality score below 64/100, incomplete Part C2 of NEC contract

Evaluation approach: four-stage process

Stage 1: Mandatory Requirements (pass/fail)

• Signed Form of Offer and Acceptance (C1.1)
• Attendance at compulsory briefing session
• OEM confirmation of support

Stage 2: Functionality (minimum threshold 64/100)

• Company Experience: 30 points

• 0 points: no relevant reference letter

• 7 points: one relevant reference letter

• 15 points: more than one relevant reference letter

• Resource Experience: 30 points

• Site Manager/Project Manager experience: 15 points

• 0 points: less than one navigational aid project management experience
• 7 points: one navigational aid project management experience
• 15 points: more than one navigational aid project management experience

• Qualification: 15 points

• 0 points: less than NQF Level 5
• 7 points: NQF Level 5 (or SAQA equivalent)
• 15 points: more than NQF Level 5
• Methodology and Program: 10 points (detailed coverage of 8 specified topics)
• Technical Specifications: 30 points

• 0 points: full component list not met or technical specifications/brochure not attached

• 30 points: full component list met and technical specifications/brochure attached

Stage 3: Price and Preference (90/10 system)

• Price: 90 points (formula: Ps = 90(1 - (Pt-Pmin)/Pmin))
• Specific Goals: 10 points

• B-BBEE Status Level 1: 5 points

• Level 2: 4.5 points

• Level 3: 4 points

• Level 4: 3 points

• Level 5: 2 points

• Level 6: 0.5 points

• Level 7: 0.3 points

• Level 8: 0.1 points

• Non-compliant: 0 points

• Sub-contracting minimum 5% of contract value to SA EMEs/QSEs 51% owned by black people, youth, women or disabled: 5 points

• Must complete Part C2 of NEC contract in full (failure = disqualification)

Stage 4: Post-tender negotiations (where applicable)

Preference point system: 90/10 (contract value above R50 million)

Minimum qualifying score: 64/100 on functionality to proceed to price/preference stage

Scope: Replacement of Instrument Landing Systems (ILS) at OR Tambo International Airport for period not exceeding 36 months

Required ILS system components (must comply with ACSA D109 MAN Standards and Guidelines):

• Localizer system (electronics + antenna subsystem)
• Glide Path system (electronics + antenna subsystem)
• Distance Measuring Equipment (DME)
• Near-field and far-field monitoring systems
• Remote Control Status Unit (RCSU) and Control Tower Unit (CTU) integrated
• Full system redundancy implemented where required

Deliverables: Bidders must attach technical specifications or brochure to verify component compliance

Methodology and Program must cover: site survey, factory acceptance testing, site acceptance testing, installation and commissioning, flight calibration, acquisition of spare parts, after-sales service, timelines within 36 months, interdependencies

Project duration: maximum 36 months

Site Manager/Project Manager: minimum NQF Level 5 qualification (or SAQA equivalent) with at least one navigational aid project management experience

Company experience: minimum one reference letter for ILS maintenance/replacement/refurbishment/supply-installation project on client letterhead, signed/stamped

Bidders must provide a detailed Methodology and Program covering:

1. Site Survey
2. Factory Acceptance Testing
3. Site Acceptance Testing
4. Installation and Commissioning
5. Flight Calibration
6. Acquisition of Spare Parts
7. After Sales Service
8. Timelines (within 36 months)
9. Interdependencies

Scoring: 10 points allocated; evaluated on completeness and adequacy of coverage

Company experience: minimum one reference letter for project involving maintenance, replacement, refurbishment, or supply and installation of an Instrument Landing System; letter on client letterhead, signed/stamped by referee; more than one letter scores higher

Resource experience: Site Manager/Project Manager CV demonstrating:

• At least one navigational aid project management experience (scored 0/7/15 for <1, 1, >1 projects)
• Minimum NQF Level 5 qualification (or SAQA equivalent) (scored 0/7/15 for <NQF5, NQF5, >NQF5)

Key personnel: Site Manager/Project Manager is the only specified key role

Professional registration: NQF Level 5 (or SAQA equivalent) mandatory for Site Manager/Project Manager

Quality standards: compliance with ACSA D109 MAN Standards and Guidelines for Instrument Landing System requirements

Personnel qualifications: Site Manager/Project Manager must hold minimum NQF Level 5 qualification (or SAQA equivalent)

Experience verification: CV must demonstrate navigational aid project management experience

Technical verification: bidders must provide technical specifications/brochure for ILS components; full component list must be met

Testing requirements: methodology must cover factory acceptance testing and site acceptance testing

Flight calibration: included in methodology requirements

After-sales service: required as part of methodology

Spare parts: acquisition plan required

Pricing format: complete Part C2 of attached NEC contract (failure to complete = disqualification)

Preference point system: 90/10 (price 90 points, specific goals 10 points)

Contract value: above R50 million (all applicable taxes included)

Validity period: 120 business/working days (prices must remain firm)

Bid security/bond: not specified in document

Retention: not specified

Payment terms: not specified

Financial capacity/turnover thresholds: not specified

Tax compliance: SARS Tax Compliance Status (TCS) PIN or CSD number mandatory; each consortium/joint venture/sub-contractor party must submit separate TCS certificate/PIN/CSD number

Mandatory eligibility:

• Central Supplier Database (CSD) registration
• SARS Tax Compliance Status (TCS) PIN or CSD number (foreign suppliers without RSA presence exempt from TCS PIN but must complete foreign supplier questionnaire)
• B-BBEE certificate (SANAS accredited) or QSE/EME sworn affidavit (revenue thresholds: EME ≤ R10m, QSE ≤ R50m)
• CIDB grading: not specified (not construction-related)
• Professional registrations: Site Manager/Project Manager minimum NQF Level 5 (or SAQA equivalent)
• OEM confirmation of support for technical support and spare parts access
• Attendance at compulsory briefing session
• Security vetting may be required (ACSA is a National Key Point)

Returnable forms (compressed):

• SBD 1: Invitation to Bid (cover/offer page)
• SBD 4: Bidder's Disclosure (state employment, conflict of interest, independent bidding)
• SBD 6.1: Preference Points Claim (B-BBEE status level and sub-contracting goals)
• Declaration of Interest and Politically Exposed Persons form
• Confidentiality and Non-Disclosure Agreement
• Certificate of Incorporation showing ownership split
• VAT Questionnaire
• ACSA Terms and Conditions
• COIDA compliance
• Sub-contracting agreement (if claiming 5% sub-contracting points)

Local content: not specified

Disqualification triggers: missing mandatory documents, functionality score <64/100, incomplete Part C2, false declarations, late submission

B-BBEE requirements:

Evidence required:

• Revenue ≤ R10 million (EME): qualifying sworn affidavit acceptable
• Revenue ≤ R50 million (QSE): applicable certificate or qualifying affidavit
• Revenue > R50 million: valid SANAS-accredited B-BBEE certificate required

Preference points (90/10 system):

• Level 1: 5 points
• Level 2: 4.5 points
• Level 3: 4 points
• Level 4: 3 points
• Level 5: 2 points
• Level 6: 0.5 points
• Level 7: 0.3 points
• Level 8: 0.1 points
• Non-compliant: 0 points

Additional specific goal:

• Sub-contracting minimum 5% of contract value to South African EMEs and/or QSEs 51% owned by black people, youth, women or disabled people: 5 points

Documented proof required: valid B-BBEE certificate and sub-contracting agreement

Affidavit conditions: must contain required ownership and revenue information; deponent and Commissioner of Oaths must sign on same date; Commissioner must be independent of bidder

No specific health and safety requirements detailed in the document beyond general security vetting as a National Key Point. Security vetting may be required for personnel accessing the airport environment.

Contract form: NEC contract (Part C1.1 Form of Offer and Acceptance, Part C2 Pricing Data, Part C3 Scope of Works)

Contract period: up to 36 months

Confidentiality: binding Non-Disclosure Agreement required; covers all proprietary information exchanged during bid process and contract execution; survives termination; 5-day destruction/return requirement on request

Security: ACSA is a National Key Point; bidders may be subjected to security vetting; ACSA will not contract with non-compliant bidders

Intellectual property: receiving party may not use ACSA's IP (trademarks, logos, trade names, etc.) without prior written consent

Disclaimers: ACSA reserves right to award whole/part, split award, negotiate with shortlisted bidders, award to other than highest scorer, reject lowest acceptable bid, cancel bid

Bid document integrity: any alteration to bid document leads to disqualification

Hotline: ACSA Tip-Offs Anonymous (0800 00 80 80 / 086 726 1681, [email protected]) for fraud/corruption reporting

Mandatory requirements (Stage 1 - failure disqualifies):

1. Signed Form of Offer and Acceptance (C1.1 of NEC contract)
2. Attendance at compulsory briefing session (16 October 2026, 12:00PM, Microsoft Teams)
3. OEM confirmation of support verifying access to OEM technical support and spare parts (on OEM letterhead/domain/signature)

Functionality requirements (Stage 2 - minimum 64/100):

4. Company experience: reference letter(s) for ILS project(s)
5. Resource experience: Site Manager/Project Manager CV with navigational aid experience and NQF Level 5 qualification
6. Methodology and Program covering 9 specified topics
7. Technical specifications/brochure confirming all 6 ILS components meet ACSA D109 MAN standards
8. Completed Section 4 of evaluation criteria (Technical specifications)

Administrative requirements:

9. Project Organogram
10. Company profile
11. B-BBEE Certificate/Scorecard or QSE/EME Affidavit
12. Sub-contracting agreement (if claiming points)
13. Tax PIN number
14. Certificate of Incorporation showing ownership split
15. CSD Report
16. VAT Questionnaire
17. ACSA Terms and Conditions
18. COIDA compliance
19. Declaration of Interest and PEP form
20. SBD 4 Bidder's Disclosure
21. SBD 6.1 Preference Points Claim
22. Confidentiality and Non-Disclosure Agreement

Four-stage evaluation:

Stage 1: Mandatory Requirements (pass/fail)

• Form of Offer and Acceptance signed
• Compulsory briefing attendance
• OEM confirmation of support

Stage 2: Functionality (minimum 64/100)

• Company Experience: 30 points (reference letters for ILS projects)
• Resource Experience: 30 points (Site Manager CV + qualification)
• Methodology and Program: 10 points (9-topic coverage)
• Technical Specifications: 30 points (6 ILS components compliance)

Stage 3: Price and Preference (90/10)

• Price: 90 points (formula-based)
• Specific Goals: 10 points (B-BBEE level + sub-contracting)
• Part C2 of NEC contract must be complete

Stage 4: Post-tender negotiations (where applicable)

Progression: each stage must be passed before next stage; ACSA may allow reasonable time for Stage 1 submissions

Contract structure for ILS Replacement at O.R. Tambo International Airport (36 months) using NEC3 Engineering Construction Contract (ECC3) Option B. Parts: C1 Agreements & Contract Data (Form of Offer and Acceptance, Contract Data), C2 Pricing Data (Pricing Assumptions, Price List), C3 Scope of Work (Works Information), C4 Site Information. Compiled in accordance with CIDB Standard for Uniformity in Construction Procurement (January 2009 amendments).

Employer: Airports Company South Africa SOC Limited

Address: Western Precinct, Aviation Park, O.R. Tambo International Airport, 1 Jones Road, Kempton Park, Gauteng, 1632

Alternative address: O.R. Tambo International Airport, Administration Office, Southern Office Block, Western Cape, 7525

Project Manager: Details not provided (placeholders in contract data)

Scope: Replacement of Instrument Landing Systems (ILS) at O.R. Tambo International Airport for a period of 36 months.

Runway systems: 21L, 03L, 21R, 03R ILS installations.

Works include supply, installation, testing, and commissioning of ILS equipment, changover control units, RMM software, desktop computers, laptops.

Deliverables: Soft copy instruction manual and technical handbooks (1 set), hard copy technical manuals for ILS, DME, RCMS, and fibre interface (4 sets), as-built drawings (1 set).

Sectional completion: Each ILS installation completed as per programme.

Quality plan: Submit within 4 weeks of Contract Date for acceptance.

Defects period: 52 weeks after completion; defect correction period 4 weeks.

Risk register includes delivery delays, airside operations impact, safety.

Site: Airside area of O.R. Tambo International Airport.

Weather data: South African Weather Services records for O.R. Tambo.

Defects date: 52 weeks after completion of whole works.

Defect correction period: 4 weeks.

Quality plan: Contractor must submit quality plan for acceptance within 4 weeks of Contract Date.

Quality management system: Contractor must implement and maintain QMS meeting requirements in Works Information.

Changes to quality plan: Must be submitted for acceptance.

Non-compliance: Project Manager may instruct correction; not a compensation event.

Pricing method: NEC3 Option B – Bill of Quantities (BoQ).

Currency: Strictly South African Rand (ZAR); bids in foreign currency disqualified.

Rates: All-inclusive fixed rates covering all costs (customs duties, forward cover, import taxes, foreign exchange variances); no price adjustments or escalations for exchange rate fluctuations.

Risk absorption: Bidder confirms all foreign currency exposure factored into unit rates; hedging costs included in rates or preliminaries.

Price list items (examples):

• RMM Software: 4 units
• Desktop computer with serial port: 4 units
• Personal laptop with serial port: 2 units
• ILS Changeover Control Units (supply): 4 units
• ILS Changeover Control Units (install): 4 units
• Soft copy instruction manual and technical handbooks (English): 1 sum
• Hard copy technical manuals (ILS, DME, RCMS, fibre interface): 4 each
• As-built drawings: 1 sum

Total price list excludes VAT.

Measurement method: As stated in Part C2.1 Pricing Assumptions.

Payment: Based on actual quantities of work done per BoQ rates; value-related items not used; time-related items measured by time rates.

Contract type: NEC3 ECC Option B (Priced contract with bill of quantities).

Currency: South African Rand (ZAR); all rates inclusive of all costs, no foreign currency, no price adjustments.

Performance bond: 10% of contract value, unconditional on-demand bond from accepted bank/insurer, valid until end of contract period.

Delay damages: R2,000 per day per section (4 sections: 21L, 03L, 21R, 03R), total limit R10,000; for whole works R2,000 per day up to R5,000 limit.

Low-performance damages: R10,000 each for four milestones: (1) initial spares package delivered and accepted, (2) technical publications/manuals delivered and approved 100% complete, (3) minimum 50% of nominated technicians trained and certified competent, (4) system demonstrates 99.5% availability over agreed demonstration period.

Payment terms: Monthly assessment intervals; payment within 4 weeks of receipt of valid tax invoice.

Insurance: Contractor must provide aviation liability insurance cover not less than R300,000; proof required before work starts and annually. Public liability insurance as per subcontract agreement. Employer provides insurances per Annexure D.

Limitation of liability: Contractor's liability for indirect/consequential loss, property damage, and design defects limited to maximum insurance cover. Total liability limited to total of Prices (excluding additional excluded matters). Employer's liability for indirect/consequential loss limited to R0.

CIDB registration required (if applicable).

COID Act: Contractor must provide letter of good standing with Compensation Fund or licensed insurer before work commences.

OHS Agreement: Mandatory per Section 37(2) of OHS Act and Construction Regulation 5.1(k); baseline risk assessment required 7 days before work starts.

Quality management: Contractor must implement and maintain quality management system per Works Information; quality plan submitted within 4 weeks of Contract Date.

Insurance proofs: Aviation liability R300,000, public liability, COID compliance.

Ethics: Compliance with Prevention and Combating of Corrupt Activities Act; no corrupt practices.

Confidentiality: All contract information confidential; prior written consent required for disclosure or images.

Intellectual Property: Contractor grants Employer irrevocable, transferable, non-exclusive, royalty-free licence to use IP for constructing, operating, maintaining works.

Joint venture: If Contractor is a JV/consortium, members jointly and severally liable; must notify key authorised person within 1 week of Contract Date; no material alteration without Employer consent.

Cession/assignment: Contractor may not cede, delegate, or assign rights/obligations without Employer written consent.

Environmental: Waste quantities to be accounted for (limited detail).

OHS Agreement: Mandatory per Section 37(2) of Occupational Health & Safety Act and Construction Regulation 5.1(k).

Parties: ACSA (Client) and Contractor (Mandatary/Principal Contractor).

Contractor obligations:

• Ensure compliance with OHS Act and COID Act.
• Provide letter of good standing with Compensation Fund or licensed insurer before work.
• Maintain public liability insurance as per subcontract agreement.
• Perform baseline risk assessment 7 days before work commences; document hazards, risk analysis, safe work procedures, monitoring plan.
• All work under close supervision of trained employees.
• Assign responsibility per Section 16(1) OHS Act; any delegation per Section 16(2) must be copied to Client.
• Only duly authorised Section 16.2 appointee may sign agreement; written designation by CEO required.
• Report unsafe/unhealthy conditions to Client in writing.
• Not endanger Client's employees or other persons.
• Subcontractors must conclude similar written agreements.
• Agreement binding for all work undertaken for Client.

Contract: NEC3 ECC Option B (Priced contract with bill of quantities) with dispute resolution Option W1 (adjudication then arbitration). Secondary options: X2 (Changes in law), X5 (Sectional completion), X7 (Delay damages), X13 (Performance bond), X15 (Limitation of liability for design), X17 (Low-performance damages), X18 (Limitation of liability), Z clauses (additional conditions).

Completion: 36 months after contract signing by ACSA. Access date: airside on contract signing date. Starting date: upon signing by ACSA.

Sectional completion: Four sections (21L, 03L, 21R, 03R ILS installations) with completion dates as per programme.

Delay damages: R2,000 per day per section, total limit R10,000; whole works R2,000 per day up to R5,000 limit. If delay damages reach limit, Employer may terminate Contractor's obligation.

Performance bond: 10%, unconditional on-demand from accepted bank/insurer, must remain valid until end of contract; failure to extend allows Employer to claim full amount as cash security.

Low-performance damages: R10,000 each for four milestones (spares package, technical manuals, 50% technicians trained, 99.5% availability).

Limitation of liability: Contractor's liability for indirect/consequential loss, property damage, design defects limited to maximum insurance cover; total liability limited to total of Prices (excluding additional excluded matters). Employer's liability for indirect/consequential loss limited to R0.

Dispute resolution: Adjudicator selected from panel in Annexure C; nominating body: Chairman of Johannesburg Society of Advocates; tribunal: arbitration per Association of Arbitrators (Southern Africa) rules; place: city where site located.

Changes in law: Defined per Z15, excluding certain tax changes and permit changes due to Contractor fault.

Termination: Additional ground for business rescue proceedings.

Cession/assignment: Contractor requires Employer written consent; Employer may cede on notice.

Joint venture: Joint and several liability; notify key person within 1 week; no material alteration without consent.

Ethics: Prohibition of corrupt practices; compliance with anti-bribery laws; breach grounds for termination.

Confidentiality: All information confidential; prior written consent for disclosure or images; subcontractors bound.

Liens: Contractor keeps equipment free of liens; waives liens vis-à-vis Employer.

Intellectual Property: IP rights remain with originator; Contractor grants Employer irrevocable, transferable, non-exclusive, royalty-free licence for project purposes; third-party disclosure requires Contractor approval and confidentiality undertaking.

Payment: Assessment interval monthly; final payment within 4 weeks of final assessment; compensation events must be notified within 4 weeks; only critical path events entitle changes.

Quality management: Contractor implements QMS per Works Information; quality plan submitted within 4 weeks for acceptance.

Defects: Defects date 52 weeks after completion; defect correction period 4 weeks; defects date extended if Employer cannot use works due to defect.

Weather: Measurements from South African Weather Services at O.R. Tambo; assumed ten-year return values per Annexure A.

Purpose of the OHS agreement:

• Assist Airport Company South Africa (ACSA) in complying with the Occupational Health & Safety Act and its regulations.
• Assist ACSA in complying with the Compensation for Occupational Injuries & Diseases Act (COID Act).
• Agreement must be concluded before any contractor or subcontracted work commences.
• Parties: ACSA (Client) and the Mandatary (Principal Contractor).

OHS technical requirements for the Mandatary (Principal Contractor):

• Comply with Occupational Health & Safety Act (Sections 1-50) and Construction Regulations 2014.
• Conduct baseline risk assessment by a competent person before work starts, including hazard identification, risk analysis, mitigation plan, safe work procedures, and monitoring/review plan.
• Appoint competent persons trained on relevant OHS aspects.
• Enforce strict OHS discipline.
• Provide and enforce use of personal protective equipment (PPE).
• Develop, make available, and enforce written safe working practices/procedures.
• Prohibit unsafe equipment, machinery, or articles on Client premises.
• Report all incidents/accidents per OHS Act to Provincial Director: Department of Labour and to Client.
• Obtain prior written approval before using any Client machinery, articles, substances, plant, or PPE.
• Obtain required permits before performing permit-required work.
• Prohibit alcohol and intoxicating substances on premises; remove anyone suspected of being under influence immediately.
• Cooperate fully with Client employees on OHS inquiries.
• Submit all safety checklist documentation, including written Construction Manager appointment (Construction Regulation 8), 7 days before work commences.
• Agreement must be signed by authorised representative appointed under Section 16.2 of OHS Act, with written designation by CEO, before work starts.
• Non-compliance may lead to immediate contract cancellation.

Insurance and compensation requirements:

• All employees (including subcontractors' employees) must be covered under Compensation for Occupational Injuries & Diseases Act (COID Act); provide letter of good standing with Compensation Fund or Licensed Insurer before starting work.
• Maintain Public Liability Insurance as required by the Subcontract Agreement.
• Maintain any other insurance cover adequate for possible losses/claims arising from acts/omissions of Mandatary, subcontractors, or their employees on Client premises.
• Insurance cover must remain in force while employees are on Client premises or for duration of contractual relationship, whichever is longer.

Compliance obligations:

• Comply with Occupational Health & Safety Act (Act 85 of 1993) and its regulations, and Compensation for Occupational Injuries & Diseases Act (COID Act).
• Conclude written OHS agreement (Section 37(2) of OHS Act and Construction Regulation 5.1(k)) before any contractor/subcontracted work commences.
• Mandatary must be familiar with OHS Act and applicable regulations.
• Subcontractors must have similar written agreements.
• Mandatary must contact Client if unable to perform per agreement.
• Agreement binding for all work undertaken for Client.
• Submit safety checklist documentation and Construction Manager appointment (Regulation 8) 7 days before work.
• Baseline risk assessment by competent person before work.
• Appoint competent persons for OHS aspects.
• Enforce OHS discipline, PPE usage, safe work procedures.
• Incident reporting to Department of Labour and Client.
• Permit system adherence.
• Alcohol and intoxicant prohibition.
• Participation in Client OHS inquiries.
• Signatory must be authorised under Section 16.2 with CEO written designation.
• Non-compliance may result in immediate contract cancellation.

Further undertakings:

• Only authorised representative appointed under Section 16.2 of OHS Act may sign agreement; signing power must be designated in writing by CEO; copy provided to Client.
• Mandatary confirms obligation to report unhealthy/unsafe conditions to Client management in writing; employees versed accordingly.
• Mandatary warrants not to endanger health/safety of Client employees or others.
• No work may commence until agreement is duly completed, signed, and received by Client.
• Non-compliance with any clause may lead to immediate contract cancellation.

Insurance requirements (detailed):

• Mandatary warrants all employees (including subcontractors' employees) covered under COID Act; letter of good standing with Compensation Fund or Licensed Insurer required before work.
• Mandatary warrants possession of Public Liability Insurance as required by Subcontract Agreement.
• Mandatary warrants possession of any other insurance cover adequate for possible losses/claims arising from acts/omissions of Mandatary, subcontractors, or their employees on Client premises.
• Insurance cover must remain in force while employees are on Client premises or for duration of contractual relationship, whichever is longer.