Verifies that the complete approach lighting system is correctly installed, structurally secure, correctly aligned, electrically sound, correctly illuminated, correctly coloured, controllable, photometrically compliant, and ready for operational acceptance. Division 08 follows Division 07 — Taxiway Lighting System Commissioning, moving from physical/structural verification through electrical testing, optical verification, control, photometry, and finally complete approach-light system acceptance.
Sequence: Installation → Structure → Foundations/Frangibility → Alignment → Cable → Transformer → Connector → Fixture → Illumination/Colour → Circuit → Control → Photometry → Acceptance. Numerical alignment tolerances, foundation requirements, frangibility requirements, photometric values, colour criteria, and circuit limits are always taken from the approved project drawings/specifications, applicable approach-light system design, manufacturer documentation, and applicable standards — this topic list defines the verification scope, not the numerical limits.
A visually illuminated approach-light system is not automatically a commissioned approach-light system. Final acceptance must demonstrate that physical geometry, structural installation, electrical circuit, optical performance, and control functionality all satisfy the applicable approved requirements — not just that the lights turn on.
Division 08 is worked as a staged sequence rather than a single pass — each group below builds on the one before it, and the division closes only once every group is signed off into final acceptance.
| Group | What It Confirms |
|---|---|
| A — Installation Verification | The complete approach-lighting installation corresponds with the approved design, layout, and fixture schedule |
| B — Structural & Alignment Verification | Fixtures, light bars, poles, crossbars, foundations, and frangible components are correctly installed and aligned |
| C — Electrical Verification | Cables, transformers, and connectors associated with the approach-lighting system are electrically sound |
| D — Functional & Optical Verification | Fixtures operate correctly and the system illuminates with the correct colour |
| E — System Alignment, Circuit & Control | Overall system alignment, circuit performance, and control response are all correct |
| F — Photometric Verification & Final Acceptance | Photometric performance is compliant and the complete system is formally accepted |
Two requirement groups should be closed out before the Division 08 team starts working through the topic list.
Grouped by verification focus, in the order the division is normally worked — click any topic to expand its verification checks and acceptance criteria.
Acceptance Criteria: the physical installation matches the approved approach-light layout, installation drawings, and fixture schedule, with no missing, misplaced, or damaged components outstanding.
Acceptance Criteria: each fixture's measured alignment is within the approved tolerance for axis, elevation, azimuth, and orientation relative to the runway centreline.
Acceptance Criteria: each light bar, assessed as an assembly, satisfies position, spacing, elevation, and level requirements relative to the runway centreline and crossbar geometry.
Acceptance Criteria: every pole is correctly located, vertical, structurally sound, and free of corrosion, damage, or mechanical instability.
Acceptance Criteria: every crossbar is correctly located, securely attached, mechanically sound, and free of corrosion or deformation affecting fixture alignment.
Acceptance Criteria: foundation acceptance is based on the approved civil/structural design requirements, with no cracking, settlement, or anchorage defect outstanding.
Hold Point: a generic mechanical component is never substituted for an approved frangible component without design approval — any such substitution or obstruction to intended frangibility halts acceptance.
Acceptance Criteria: every approach-lighting cable passes continuity, insulation, and termination testing against the project specification, with results traceable by circuit and cable ID.
Acceptance Criteria: Division 08 confirms that accepted transformers are correctly incorporated into the approach-lighting system; the detailed transformer testing procedure itself is established in Division 04 — Isolation Transformer Testing & Commissioning.
Acceptance Criteria: every connector assembly in the primary-to-fixture chain is correctly identified, mated, locked, sealed, and continuous, consistent with the broader connector-testing framework.
Acceptance Criteria: every fixture operates correctly ON and OFF, without flicker or intermittent operation, and responds correctly to intensity commands where applicable.
Acceptance Criteria: the complete approach-light pattern illuminates consistently at system level, with no dark, abnormally bright, or intermittent fixtures.
Acceptance Criteria: measured or observed colour is correct and consistent across fixtures, against the approved acceptance basis.
Acceptance Criteria: this is the system-level alignment verification, distinct from the individual fixture and light-bar checks — overall axis, pattern geometry, and centreline relationship are all confirmed correct.
Hold Point: any abnormal current, unstable loading, dark fixture, or fault traced to cable, transformer, or connector is investigated and resolved before circuit performance is accepted.
Acceptance Criteria: Division 08 verifies the approach-lighting system's operational response to its control commands; the complete ALCMS/SCADA/PLC commissioning remains a separate system-level activity.
Acceptance Criteria: Division 08 covers approach-light system photometric verification; the dedicated photometry division provides the detailed measurement methodology, equipment, and reporting framework.
| Status | Meaning |
|---|---|
| PASS | Approach-lighting system satisfies applicable requirements |
| FAIL | One or more acceptance requirements are not satisfied |
| RETEST | Corrective action and repeat testing required |
| CONDITIONAL | Accepted subject to documented conditions |
| N/A | Not applicable to the installed approach-light configuration |
Hold Point: final acceptance is withheld until every category — Installation, Alignment, Electrical, Functional, and Photometric — is closed, punch-list items are resolved, and test records and as-built information are complete.
The approach-lighting system is a combination of civil/structural installation, frangible structures, fixture alignment, light-bar geometry, electrical circuit, transformers, connectors, fixtures, illumination, colour, control, and photometric performance — final acceptance follows this complete chain.
Approved layout, fixture schedule, and physical installation match.
Poles, crossbars, and foundations verified against civil/structural design.
Approved frangible components installed, unmodified, and unobstructed.
Fixture, light-bar, and system-level alignment all within tolerance.
Electrical circuit verified from primary through to fixture.
Correct illumination and correct colour confirmed at system level.
Circuit performance and control response verified end to end.
Photometric results satisfy applicable criteria before final sign-off.
Quick answers about Division 08 — Approach Lighting System Commissioning in the AGL Testing & Commissioning Manual.
Division 08 of the AGL Testing & Commissioning Manual covers Approach Lighting System Commissioning. It verifies that the complete approach lighting system is correctly installed, structurally secure, correctly aligned, electrically sound, correctly illuminated, correctly coloured, controllable, photometrically compliant, and ready for operational acceptance. Division 08 follows Division 07 — Taxiway Lighting System Commissioning, moving from physical/structural verification through electrical testing, optical verification, control, photometry, and finally complete approach-light system acceptance. It contains 18 topics (TC-ALS-001 to TC-ALS-018) organised into 6 groups (A–F), each topic with its own verification checks.
Installation → Structure → Foundations/Frangibility → Alignment → Cable → Transformer → Connector → Fixture → Illumination/Colour → Circuit → Control → Photometry → Acceptance. Numerical alignment tolerances, foundation requirements, frangibility requirements, photometric values, colour criteria, and circuit limits are always taken from the approved project drawings/specifications, applicable approach-light system design, manufacturer documentation, and applicable standards — this topic list defines the verification scope, not the numerical limits.
A visually illuminated approach-light system is not automatically a commissioned approach-light system. Final acceptance must demonstrate that physical geometry, structural installation, electrical circuit, optical performance, and control functionality all satisfy the applicable approved requirements — not just that the lights turn on. Steps: Installation → Structure → Foundations/Frangibility → Alignment → Cable → Transformer → Connector → Fixture → Illumination/Colour → Circuit → Control → Photometry → Acceptance. Focus areas: Civil / structural installation; Electrical circuit integrity; Optical & functional performance; Control & photometric compliance.
Division 08 has 18 topics in 6 groups. A — Installation Verification: Approach Light Installation Verification. B — Structural & Alignment Verification: Fixture Alignment Verification, Light-Bar Alignment Verification, Pole Installation Verification, Crossbar Verification, Foundation Verification, Frangible-Component Verification. C — Electrical Verification: Cable Testing, Transformer Testing, Connector Testing. D — Functional & Optical Verification: Fixture Operation Testing, Illumination Verification, Colour Verification. E — System Alignment, Circuit & Control: Alignment Verification, Circuit Performance Verification, Control Verification. F — Photometric Verification & Final Acceptance: Photometric Verification, Approach-Light System Acceptance.
Division 08 is worked as a staged sequence rather than a single pass — each group below builds on the one before it, and the division closes only once every group is signed off into final acceptance. A — Installation Verification: The complete approach-lighting installation corresponds with the approved design, layout, and fixture schedule; B — Structural & Alignment Verification: Fixtures, light bars, poles, crossbars, foundations, and frangible components are correctly installed and aligned; C — Electrical Verification: Cables, transformers, and connectors associated with the approach-lighting system are electrically sound; D — Functional & Optical Verification: Fixtures operate correctly and the system illuminates with the correct colour; E — System Alignment, Circuit & Control: Overall system alignment, circuit performance, and control response are all correct; F — Photometric Verification & Final Acceptance: Photometric performance is compliant and the complete system is formally accepted.
Two requirement groups should be closed out before the Division 08 team starts working through the topic list. Reference Package: Approved approach-light layout, installation drawings, and fixture schedule; Civil/structural design requirements for foundations and frangible components; Approved alignment tolerances, colour criteria, and photometric values; Division 04 — Isolation Transformer Testing & Commissioning records; Division 05 — Fixture Acceptance records. Test Readiness: Confirm approach-light circuit is isolated and safe before structural/alignment checks; Confirm photometric equipment calibration and approved measurement geometry are established; Confirm CCR output and intensity setting are verified before photometric testing; Confirm environmental/test conditions are recorded where required.
The approach-lighting system is a combination of civil/structural installation, frangible structures, fixture alignment, light-bar geometry, electrical circuit, transformers, connectors, fixtures, illumination, colour, control, and photometric performance — final acceptance follows this complete chain. (1) Correct Installation — Approved layout, fixture schedule, and physical installation match; (2) Correct Foundations & Structures — Poles, crossbars, and foundations verified against civil/structural design; (3) Correct Frangibility — Approved frangible components installed, unmodified, and unobstructed; (4) Correct Alignment — Fixture, light-bar, and system-level alignment all within tolerance; (5) Healthy Cables, Transformers & Connectors — Electrical circuit verified from primary through to fixture; (6) Operational Fixtures — Correct illumination and correct colour confirmed at system level; (7) Correct Circuit & Control — Circuit performance and control response verified end to end; (8) Photometric Compliance — Photometric results satisfy applicable criteria before final sign-off.
Approach lighting commissioning proves that the entire visual guidance sequence functions as designed, from touchdown back.
Build the technical knowledge to understand sequenced flashing, crossbar and centerline systems, and how each element combines to guide a pilot safely to the runway.
Commission with precision. Guide with confidence. Approach with certainty.
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