A strategy-wise reference for keeping an installed AGL system serviceable — not how to install it, and not what to verify on it, but what maintenance to actually perform, when, and why. Organized across 25 divisions spanning maintenance strategy, asset type, and the planning and records that hold the programme together.
All 25 divisions (835 topics) are published.
How this differs from the other references: the SOP Library documents procedure — how to install, test, or repair. The Inspection Handbook documents verification — what to check on equipment already in service. This handbook documents the maintenance decision itself — which strategy applies (preventive, corrective, predictive, condition-based, or emergency), and the specific task that strategy calls for on every AGL asset.
Every maintenance topic in the handbook is driven by one of five strategies. The strategy sets the trigger, the timing, and how the work gets authorised and closed.
Scheduled, routine work — cleaning, tightening, alignment, and functional checks — performed regardless of condition to prevent failure.
Repair or replacement once an inspection, failure, or abnormal condition has confirmed a specific defect.
Condition and performance data tracked over time — insulation resistance, CCR output, LED degradation — to forecast failure before it happens.
Work scoped to the asset's actual measured condition rather than a fixed interval — physical, environmental, and performance state decide what's justified.
Rapid-response work for critical AGL failures affecting runway or approach availability — distinct in urgency, authorisation, and reporting from routine corrective work.
Preventive work on the main runway lights follows the interval-driven approach described above. These are the three runway circuits most often scheduled first.
Scheduled cleaning of lenses, checking of fixture mounting and alignment, connector and seal checks and functional checks along the runway edge circuits, before faults develop.
Routine inspection of inset fixtures, lens condition, sealing and fixing, and functional checks of the centreline circuits, including after heavy-wheel traffic and pavement works.
Scheduled checks of threshold and wing bar lights: cleaning, alignment, colour and output checks, connector condition and circuit function.
Every maintenance topic in the handbook follows the same record, from what triggered the work through to what closes it out.
Divisions 01–05 cover the five maintenance strategies. Divisions 06–20 cover equipment-, asset- and interface-specific maintenance. Divisions 21–25 cover documentation, spares, testing, planning, and audit. All procedure pages are now published; each card below shows the number of topics covered.
The routine, calendar-driven backbone of the handbook — cleaning, tightening, alignment, and functional checks on every AGL asset.
Repair or replacement work triggered once an inspection, failure, or abnormal condition has confirmed a defect.
Condition- and trend-based forecasting — insulation resistance, CCR output, and LED performance tracked over time to flag failure before it happens.
Maintenance scoped to actual asset condition rather than the calendar — physical, environmental, and performance state decide what work is justified.
Rapid-response work for critical AGL failures — distinct from routine corrective maintenance in urgency, authorisation, and reporting.
Mechanical, optical, and electrical upkeep of every physical light fixture, independent of where it sits on the airfield.
External, internal, and control-system maintenance for Constant Current Regulators, including performance verification.
Routine and corrective maintenance for isolation transformers, plus pit and installation condition checks.
Route, condition, joint, and termination maintenance across the primary AGL cable network, through to testing and restoration.
Inspection, cleaning, and corrective work on L-823 connectors — electrical condition, installation, and protection.
The direct bridge from the Inspection Handbook into maintenance work — findings, closure, and condition escalation.
Equipment-level service guidance organised by asset type, from runway and taxiway assets through to control systems.
Preventive, corrective, and performance maintenance covering PAPI/APAPI optical and mechanical condition.
Preventive, corrective, and special maintenance for airfield signage — LED modules, drivers, and structural condition.
The complete primary cable → joint → transformer → secondary lead → connector → fixture maintenance chain.
Earthing system, equipment bonding, and lightning/surge protection maintenance, with associated testing.
Preventive, corrective, and functional maintenance for control, monitoring, and communication equipment.
Preventive, corrective, and special maintenance across the approach lighting system.
Maintenance specific to stop bar and runway guard light circuits and fixtures.
Base can, civil interface, and post-maintenance restoration work at the fixture-to-ground interface.
Maintenance, testing, and asset records, plus the document control that keeps them traceable.
Spare parts management and equipment lifecycle tracking, with a dedicated focus on critical AGL spares.
The bridge between maintenance and return to service — electrical testing, functional testing, photometry, and restoration.
When, why, and how maintenance work is planned — asset-based prioritisation, work planning, and schedule control.
The management and reliability division — audit, failure analysis, reliability metrics, and continuous improvement.
Quick answers about the AGL Maintenance Handbook and how its 25 divisions fit together.
It is a strategy-wise reference for keeping an installed AGL system serviceable, organized across 25 divisions that span maintenance strategy, asset type, and the planning and records that hold the programme together. It covers what maintenance to perform, when, and why, not how to install equipment or what to verify on it.
It has 25 divisions with 835 topics, and all 25 divisions are published.
Preventive (calendar or interval based routine work), Corrective (defect-triggered repair or replacement), Predictive (trend-based forecasting of failure), Condition-Based (work scoped to the asset's measured condition rather than a fixed interval) and Emergency (immediate rapid-response work for critical AGL failures). The strategy sets the trigger, the timing, and how the work is authorised and closed.
Divisions 01 to 05 cover the five maintenance strategies. Divisions 06 to 20 cover equipment-, asset- and interface-specific maintenance, such as fixtures, CCRs, isolation transformers, cables, connectors, PAPI, signs, earthing, ALCMS, approach lighting, stop bars and base cans. Divisions 21 to 25 cover documentation, spares, post-maintenance testing, planning and scheduling, and audit.
The SOP Library documents procedure: how to install, test or repair. The Inspection Handbook documents verification: what to check on equipment already in service. The Maintenance Handbook documents the maintenance decision itself: which strategy applies and the specific task that strategy calls for on every AGL asset.
Every topic follows the same seven-step record flow: trigger, strategy, plan, execute, verify, record and close.
PAPI / APAPI maintenance is Division 13, airfield sign maintenance is Division 14, and CCR maintenance is Division 07. Isolation transformers are Division 08, cables Division 09, connectors Division 10, earthing and bonding Division 16, ALCMS Division 17, approach lighting Division 18, stop bar and runway guard lights Division 19, and base can and civil interface Division 20.
You have the handbook — preventive, corrective, predictive, condition-based, emergency and asset-specific strategies across every AGL system.
Build the technical knowledge to understand why each strategy exists, how to judge which one a given asset needs, and how to connect maintenance decisions to the wider AGL system's performance and compliance.
Maintain with purpose. Understand the system. Build technical capability.
Please read before relying on any content on this handbook or on any record downloaded from it.