A division-wise reference for what to inspect on an installed AGL system — not how to install or repair it. Every division answers one question: for this asset, what must be verified, against what standard, and how is the result classified? Built around a five-level inspection hierarchy, from daily walk-arounds to full airport-wide condition audits.
All 25 divisions are now live, covering 1,173 published inspection topics across the full AGL asset base.
How this differs from the SOP Library: the SOP Library documents procedure — how to install, test, or repair. This handbook documents inspection — what to verify on equipment that is already installed, how to compare it against tolerance, and how to classify and record what's found. Philosophy: observe → verify → compare → classify → record → action.
Every inspection topic in the handbook sits at one of five levels, from routine daily checks through to a complete airport-wide AGL audit. The level sets the frequency, the trigger, and how deep the inspection goes.
Operational-condition checks confirming the system is serviceable right now.
Component-level checks going beyond visual status into condition, calibration, and record review.
Follows failure, lightning, flooding, major maintenance, construction, an accident/incident, or severe weather.
For new installation, replacement, modification, rehabilitation, or commissioning of AGL assets.
Complete airport-level assessment spanning runway, taxiway, approach, PAPI, signs, CCR, transformers, cables, connectors, earthing, ALCMS, and documentation.
Each topic in the handbook follows the same six-step logic, whatever the asset or level.
A handbook topic isn't "how to install a runway edge light" — it's the full set of points checked on a light that's already in service, each with a defined pass condition.
| Inspection Point | What to Verify |
|---|---|
| Fixture position | Correct location |
| Alignment | Correct orientation |
| Height | Within required installation tolerance |
| Lens | Clean and undamaged |
| Housing | No damage/corrosion |
| Mounting | Secure |
| Frangible coupling | Correct condition |
| Cable | No visible damage |
| Connector | Secure and sealed |
| Illumination | Correct operation |
| Identification | Correct asset/circuit marking |
| Surrounding area | No FOD/obstruction |
| Water | No unacceptable accumulation |
Every finding is classified consistently across all 25 divisions, so severity means the same thing whether it's a runway light or a CCR cabinet.
Directly affects flight safety or immediate serviceability. Requires immediate action.
Significant deterioration or non-conformance that must be corrected within a defined short window.
Does not affect operational serviceability but should be tracked and scheduled for correction.
Noted for awareness and trend tracking — no immediate corrective action required.
25 divisions covering the full AGL asset base, from daily airfield checks through documentation, compliance, and airport-wide condition audits. Each is coded INS-[asset], distinct from the SOP Library's division numbering.
Quick answers about the AGL Inspection Handbook, its 25 divisions and how inspection topics are structured.
It is a division-wise inspection reference for installed AGL systems, with 1,173 published inspection topics across 25 divisions. It documents what must be verified on an asset that is already in service, against what standard, and how the result is classified — not how to install or repair it.
The SOP Library documents procedure: how to install, test or repair. The Inspection Handbook documents inspection: what to verify on equipment that is already installed, how to compare it against tolerance, and how to classify and record what is found.
Every topic sits at one of five levels: routine inspection (daily, shift or weekly), detailed equipment inspection (monthly, quarterly or annual), special inspection (event-triggered, such as after failure, lightning, flooding, major maintenance, construction, an incident or severe weather), acceptance inspection (milestone-based, for new installation, replacement, modification or commissioning), and AGL system audit (an airport-wide assessment).
Each topic follows the same six-step logic: observe, verify, compare, classify, record and action. A topic sets out the inspection points checked on equipment in service, each with a defined pass condition, such as position, alignment, height, lens, housing, mounting, cable, connector, illumination and surrounding area.
The handbook uses four defect categories: Critical, which directly affects flight safety or immediate serviceability and requires immediate action; Major, a significant deterioration or non-conformance to be corrected within a defined short window; Minor, which does not affect operational serviceability but should be tracked and scheduled; and Observation, noted for awareness and trend tracking. Individual division pages also define the status scale they record against.
It has 25 divisions covering the full AGL asset base, from daily airfield inspection (Division 01) through runway, taxiway and approach lighting, PAPI/APAPI, signs, CCRs, transformers, cables, connectors, electrical safety, civil works, earthing, ALCMS and fixtures, to stop bars, obstruction lighting, FOD and environmental conditions, electrical rooms, testing and calibration, preventive maintenance, post-maintenance, pre-commissioning, documentation and compliance, and the airport-wide audit in Division 25.
Yes. Each inspection topic on the division pages has a Download as Word option that produces an uncontrolled Word checklist template (description, a tick-box inspection table and an inspector sign-off block) for personal reference and internal training, to be reviewed and adopted under the user’s own document control.
Yes. The handbook is an uncontrolled educational reference, not an approved procedure. The airport's approved inspection schedule, SMS procedures, ATC instructions, NOTAM procedures and local aerodrome regulations always take precedence, and the current revision of any official document should be verified before use.
From daily airfield checks to airport-wide condition audits, every division in this handbook tests a different piece of AGL knowledge. Precision AGL Academy is where that knowledge becomes a connected skill — understanding why abnormalities occur, how they affect serviceability, and when further testing, troubleshooting, maintenance or corrective action is required.
Develop structured knowledge across:
Learn to connect the inspection process with the wider AGL engineering lifecycle.
Inspect with purpose. Understand the system. Act with technical confidence.
Please read before relying on any content on this handbook or on any record downloaded from it.