Every runway, taxiway, approach, and PAPI/apron fixture reaches the field after Division 04 has released the isolation transformer feeding it — but the transformer being healthy says nothing about the fixture bolted on top of it. Division 05 verifies that each Airfield Lighting Fixture (ALF) is correctly installed, identified, rated, mechanically secure, correctly positioned and oriented, optically intact, electrically connected, illuminated and operational before it is accepted into the AGL system.
Philosophy: a fixture is evaluated as a complete chain — correct fixture → correct rating → correct location → correct height → correct mounting → correct alignment → correct orientation → healthy optical components → correct secondary connection → healthy connector → electrical integrity verified → correct illumination → correct switching → correct intensity → accepted fixture. A fixture is not accepted merely because it turns ON — fixture-specific photometric values, tolerances, mounting heights, alignment tolerances and electrical acceptance limits are always taken from the approved drawings, project specification, manufacturer's documentation and applicable standard, never assumed from this topic list.
Every fixture moves through the same underlying sequence — installation → mechanical/optical condition → electrical integrity → illumination → switching → intensity → acceptance — whatever its type or location, and only after Division 04 has released the isolation transformer feeding it.
The airfield lighting fixture is evaluated as a complete chain — every link has to hold before the fixture is accepted, distinguishing physical installation acceptance, electrical acceptance, optical/visual acceptance, and functional acceptance.
| Link | What It Confirms |
|---|---|
| Correct Fixture | The right fixture type is installed at the right location and correctly identified |
| Correct Rating | Nameplate/marking and datasheet match the approved specification |
| Correct Location | The fixture sits at the approved position per the fixture schedule and layout |
| Correct Height | Mounting/elevation is within the approved tolerance for that fixture |
| Correct Mounting | The fixture is mechanically secure with no loose or damaged hardware |
| Correct Alignment | Horizontal alignment matches the required airfield reference |
| Correct Orientation | Light-emission direction matches the approved lighting layout |
| Healthy Optical Components | Lens, prism, lamp/LED module are undamaged and correctly seated |
| Correct Secondary Connection | The secondary lead from transformer/connector to fixture is sound |
| Healthy Connector | Connector mating, locking, and sealing are correctly made |
| Electrical Integrity Verified | Insulation and continuity are confirmed where testing applies |
| Correct Illumination | The fixture illuminates correctly with no abnormal behaviour |
| Correct Switching | The fixture responds correctly to ON/OFF and CCR/ALCMS commands |
| Correct Intensity | Optical output steps correctly with the applicable intensity command |
| Accepted Fixture | All applicable results are recorded and formally accepted |
Two conditions should be established before any airfield lighting fixture is worked through this division.
Grouped by commissioning focus, in the order each fixture is normally worked through — click any topic to expand its verification checks and acceptance criteria.
Hold Point: any mismatch against the approved drawing or fixture schedule is resolved before proceeding.
Acceptance Criteria: every fixture is uniquely and traceably identified across every reference document.
Hold Point: a fixture with an incorrect rating is not accepted merely because it illuminates.
Acceptance Criteria: the fixture is mechanically secure with no loose, damaged, or unstable mounting hardware.
Hold Point: the applicable project drawing/specification defines the acceptance tolerance — do not assume a universal figure.
Hold Point: incorrect alignment can result in an apparently healthy fixture producing incorrect visual guidance — treat this as a safety-relevant discrepancy.
Acceptance Criteria: the fixture's optical orientation matches the approved lighting layout exactly.
Acceptance Criteria: the lens is clean and suitable for continued service.
Acceptance Criteria: the prism is physically and optically suitable for the intended fixture function.
Hold Point: for LED fixtures, proceed to LED module verification instead of lamp verification.
Acceptance Criteria: the LED module, driver, and heat-management arrangement are correctly installed, physically sound, and free of dark or abnormal segments.
Acceptance Criteria: the secondary lead connecting the isolation transformer/connector to the fixture is mechanically sound and electrically verified.
Acceptance Criteria: connector identification, continuity, contact, mating, locking, sealing, and cable-lead verification are all confirmed — this also aligns with the broader connector-testing activities in the wider framework.
Hold Point: do not apply inappropriate insulation-test voltages to LED drivers, electronic modules, or other sensitive components — follow the manufacturer's approved test method.
Acceptance Criteria: continuity is confirmed through the complete fixture circuit with no open circuits or poor contacts.
Acceptance Criteria: the fixture produces the required, stable illumination with no abnormal or intermittent behaviour.
Acceptance Criteria: the fixture operates correctly as part of its intended AGL circuit through the full test sequence.
Acceptance Criteria: the fixture responds correctly and without delay to every applicable switching command.
Hold Point: CCR output-current verification confirms electrical current supplied to the circuit — fixture intensity verification confirms resulting light-output behaviour. The two are distinct and should be correlated during commissioning.
Acceptance Criteria: no airfield lighting fixture is released as commissioned until its installation, identification, rating, mounting, height, alignment, orientation, optical condition, electrical connections, continuity/insulation where applicable, illumination, switching, and intensity performance have been verified and documented against the applicable approved requirements — this closes Division 05 and releases the fixture for circuit/system commissioning.
Division 05 runs as a single continuous sequence per fixture, from transformer acceptance through to release for circuit/system commissioning. The source framework treats fixture testing as a distinct activity before the later dedicated runway-lighting, taxiway-lighting, PAPI, approach-lighting, and photometric testing divisions.
Division 04 has released the isolation transformer feeding this fixture.
Verify fixture identity and confirm installation against the approved drawing.
Cross-check specification, datasheet, nameplate, and installed fixture.
Confirm mechanical security and elevation against tolerance.
Confirm the fixture points where the approved layout requires.
Inspect lens, prism, lamp, or LED module condition.
Verify the electrical connection from transformer to fixture.
Perform electrical integrity testing where applicable.
Energize the fixture under controlled conditions.
Verify illumination quality and full ON/OFF operational behaviour.
Verify command response and correct step-intensity behaviour.
Complete the fixture acceptance checklist and release for circuit/system commissioning.
Two short answers that place Division 05 inside the wider commissioning programme. Confirm all acceptance criteria against the approved specification and the current standard.
An airport lighting halogen fixture uses a halogen lamp as its light source, where an LED fixture uses an LED module. The Division 05 sequence is the same, but the lamp stage matters more. Verify the correct lamp type and rating against the datasheet and approved drawing (see Lamp Verification), then check lamp seating and lamp identification. Inspect the lens and prism for cracks, moisture and contamination, because these change the optical output. Then verify the secondary lead and connector, insulation and continuity, controlled energization, illumination and each intensity step. A wrong lamp rating can show up as incorrect light output or shortened lamp life, so a lamp that lights is not proof of acceptance.
An airport lighting commissioning test is run in stages. Division 05 is the fixture stage: each fixture is proven installed, aligned, electrically sound and correctly illuminated before its circuit is commissioned. The system-level tests that follow are the runway, taxiway and approach divisions, then functional, site-acceptance and performance testing. A fixture released here is ready for circuit and system commissioning, not yet accepted as part of a working system.
Quick answers about Division 05 — Airfield Lighting Fixture Testing in the AGL Testing & Commissioning Manual.
Division 05 of the AGL Testing & Commissioning Manual covers Airfield Lighting Fixture Testing. Every runway, taxiway, approach, and PAPI/apron fixture reaches the field after Division 04 has released the isolation transformer feeding it — but the transformer being healthy says nothing about the fixture bolted on top of it. Division 05 verifies that each Airfield Lighting Fixture (ALF) is correctly installed, identified, rated, mechanically secure, correctly positioned and oriented, optically intact, electrically connected, illuminated and operational before it is accepted into the AGL system. It contains 20 topics (TC-ALF-001 to TC-ALF-020) organised into 6 groups (A–F), each topic with its own verification checks.
A fixture is evaluated as a complete chain — correct fixture → correct rating → correct location → correct height → correct mounting → correct alignment → correct orientation → healthy optical components → correct secondary connection → healthy connector → electrical integrity verified → correct illumination → correct switching → correct intensity → accepted fixture. A fixture is not accepted merely because it turns ON — fixture-specific photometric values, tolerances, mounting heights, alignment tolerances and electrical acceptance limits are always taken from the approved drawings, project specification, manufacturer's documentation and applicable standard, never assumed from this topic list.
Every fixture moves through the same underlying sequence — installation → mechanical/optical condition → electrical integrity → illumination → switching → intensity → acceptance — whatever its type or location, and only after Division 04 has released the isolation transformer feeding it. Steps: Identify → Verify Installation → Verify Rating → Verify Position → Inspect Optics → Verify Electrical → Controlled Energization → Verify Function → Accept. Focus areas: Identification & documentation; Physical & positional condition; Optical component integrity; Electrical connection integrity; Illumination & functional performance.
Division 05 has 20 topics in 6 groups. A — Identification & Rating: Fixture Installation Verification, Fixture Identification Verification, Fixture Rating Verification. B — Positional & Mechanical Verification: Fixture Mounting Verification, Fixture Height Verification, Fixture Alignment Verification, Fixture Orientation Verification. C — Optical Component Inspection: Lens Inspection, Prism Inspection, Lamp Verification, LED Module Verification. D — Electrical Connection & Integrity: Secondary Lead Verification, Connector Verification, Fixture Insulation Verification, Fixture Continuity Verification. E — Functional Verification: Fixture Illumination Verification, Fixture Operational Test, Fixture Switching Test, Fixture Intensity Verification. F — Acceptance: Fixture Acceptance Test.
The airfield lighting fixture is evaluated as a complete chain — every link has to hold before the fixture is accepted, distinguishing physical installation acceptance, electrical acceptance, optical/visual acceptance, and functional acceptance. Correct Fixture: The right fixture type is installed at the right location and correctly identified; Correct Rating: Nameplate/marking and datasheet match the approved specification; Correct Location: The fixture sits at the approved position per the fixture schedule and layout; Correct Height: Mounting/elevation is within the approved tolerance for that fixture; Correct Mounting: The fixture is mechanically secure with no loose or damaged hardware; Correct Alignment: Horizontal alignment matches the required airfield reference; Correct Orientation: Light-emission direction matches the approved lighting layout; Healthy Optical Components: Lens, prism, lamp/LED module are undamaged and correctly seated; Correct Secondary Connection: The secondary lead from transformer/connector to fixture is sound; Healthy Connector: Connector mating, locking, and sealing are correctly made; Electrical Integrity Verified: Insulation and continuity are confirmed where testing applies; Correct Illumination: The fixture illuminates correctly with no abnormal behaviour; Correct Switching: The fixture responds correctly to ON/OFF and CCR/ALCMS commands; Correct Intensity: Optical output steps correctly with the applicable intensity command; Accepted Fixture: All applicable results are recorded and formally accepted.
Two conditions should be established before any airfield lighting fixture is worked through this division. Numerical Limits Are Not Universal: Mounting heights, alignment tolerances, and intensity values are taken from the approved drawings and project specification, not assumed from this topic list; Electrical acceptance limits and insulation test voltages come from the fixture manufacturer's documentation and applicable standard; Do not apply inappropriate insulation-test voltages to LED drivers or other electronic modules — follow the manufacturer's approved test method; A fixture with an incorrect rating is not accepted merely because it illuminates.
Division boundary: Division 04 verifies and releases the isolation transformer feeding each fixture before Division 05 begins; Connector identification, continuity, contact, mating, locking, sealing, and cable-lead verification also sit within the broader Cable & Connector Testing scope; CCR output-current verification (electrical supply) is distinct from fixture intensity verification (light-output behaviour) — both should be correlated during commissioning; Fixture control response confirmed by ALCMS is subsequently verified again as part of the wider system-control testing.
Division 05 runs as a single continuous sequence per fixture, from transformer acceptance through to release for circuit/system commissioning. The source framework treats fixture testing as a distinct activity before the later dedicated runway-lighting, taxiway-lighting, PAPI, approach-lighting, and photometric testing divisions. (1) Transformer Accepted — Division 04 has released the isolation transformer feeding this fixture; (2) Identification & Installation — Verify fixture identity and confirm installation against the approved drawing; (3) Rating Verification — Cross-check specification, datasheet, nameplate, and installed fixture; (4) Mounting & Height — Confirm mechanical security and elevation against tolerance; (5) Alignment & Orientation — Confirm the fixture points where the approved layout requires; (6) Optical Inspection — Inspect lens, prism, lamp, or LED module condition; (7) Secondary Lead & Connector — Verify the electrical connection from transformer to fixture; (8) Insulation & Continuity — Perform electrical integrity testing where applicable; (9) Controlled Energization — Energize the fixture under controlled conditions; (10) Illumination & Operation — Verify illumination quality and full ON/OFF operational behaviour; (11) Switching & Intensity — Verify command response and correct step-intensity behaviour; (12) Acceptance Test — Complete the fixture acceptance checklist and release for circuit/system commissioning.
For an airport lighting halogen fixture, confirm the lamp type and rating against the datasheet, lamp seating and identification, lens and prism condition, secondary lead and connector integrity, insulation and continuity, then illumination and every intensity step. Acceptance limits come from the approved specification and current standard.
An airport lighting commissioning test runs in stages. Division 05 is the fixture stage, completed before circuit and system commissioning. Runway, taxiway and approach system tests, then functional, site-acceptance and performance testing, follow it.
Fixture testing is the point where the circuit becomes visible light.
Build the technical knowledge to understand photometric performance, electrical continuity, frangibility, and mounting integrity, and how fixture-level results feed every commissioning stage that follows.
Test with precision. Illuminate with confidence. Commission with certainty.
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