The strategic layer of the AGL Knowledge Hub — not whether an asset is installed correctly, not how to keep it running, not why it failed, but what should be done with it throughout its entire life. Organized across 25 divisions spanning planning, criticality, procurement, installation, commissioning, operations, maintenance strategy, health monitoring, reliability, lifecycle cost, spares, refurbishment, replacement, decommissioning, and digital asset management.
All 25 divisions (495 topics) are structured and published.
How this differs from the other references: the Inspection Handbook asks whether the installation is physically correct. The Testing & Commissioning Manual asks whether it performs as required. The Maintenance Handbook documents how to keep an accepted, in-service asset running. The Failure Database explains why something failed and how to prevent recurrence. This guide sits above all four — it's the strategic layer that decides what to do with an asset from the day it's planned to the day it's recycled, and it's what ties the other four references together.
The same AGL asset can appear in five different references for five different reasons. This guide is the only one that spans the full life — the other four each own one stage or one lens.
Condition, alignment, and physical state of equipment already in service, against standard.
Electrical, functional, photometric, and integration proof before acceptance into service.
The maintenance strategy and specific task that applies to an accepted, in-service asset.
Root-cause investigation and recurrence-prevention once something has already gone wrong.
The strategic decision layer — plan, procure, operate, maintain, refurbish, replace, or dispose — across the asset's entire life.
The central logic of the guide: every asset moves through these twelve stages, and every division below maps onto one or more of them.
The guide doesn't replace the other four references — it's the spine they attach to.
| AGL Design Manual | Division 04 (Design for Lifecycle Performance) feeds design-stage decisions — maintainability, reliability, standardization, and lifecycle cost — back into design practice. |
| AGL Testing & Commissioning Manual | Division 07 (Commissioning & Baseline Asset Performance) establishes the baseline every later health, reliability, and condition assessment is measured against. |
| AGL Maintenance Handbook | Division 09 (Maintenance Strategy & Optimization) stays strategic — strategy selection and optimization — while the Handbook owns the day-to-day procedure. |
| AGL Inspection Handbook | Division 15 (Asset Inspection & Condition Assessment) feeds condition grades and defect data directly into the asset health index. |
| AGL Failure Database | Division 11 (Reliability Engineering & Failure Management) is the lifecycle-level home for MTBF, MTTR, and failure-trend data. |
| AGL Asset Lifecycle Guide | What should we do with this asset throughout its entire life? — the question every other division answers a piece of. |
Divisions 01–07 cover the front half of the lifecycle — planning through baseline performance. Divisions 08–15 cover operations, maintenance strategy, health, reliability, cost, spares, and warranty. Divisions 16–20 cover refurbishment, upgrade, obsolescence, replacement, and disposal. Divisions 21–25 cover digital asset management, KPIs, audit, case studies, and the master asset-record database.
Where the lifecycle starts — identification, classification, coding, criticality, and long-term asset strategy.
The structure of the master register — identification fields, dates, condition, history links, and data governance.
Criticality methodology and risk ranking for runway, taxiway, PAPI, CCR, transformer, cable, sign and ALCMS assets.
Connects the Asset Lifecycle Guide with the AGL Design Manual — maintainability, reliability, and lifecycle-cost in design.
Design-life expectations, product selection, vendor evaluation, spare-parts strategy, and warranty management.
Installation records, commissioning documentation, baseline performance, and asset handover to operations.
Establishes the baseline every later assessment is measured against — connects directly with Testing & Commissioning.
Utilization, availability, energy consumption, and performance trending during in-service operation.
Where lifecycle strategy meets the Maintenance Handbook — strategy selection and optimization, not procedure.
Condition scoring, health index, degradation monitoring, and Remaining Useful Life estimation.
The lifecycle-level connection to the Failure Database — MTBF, MTTR, failure trends, and reliability-centred maintenance.
A major division — lifecycle decisions should never be based on purchase price alone. Total cost of ownership, forecasting, optimization.
Stock levels, critical-spare identification, obsolete-spare management, and inventory optimization.
Warranty tracking, claims, supplier performance and reliability trends, and post-warranty support.
Connects directly with the AGL Inspection Handbook — condition grading and defect classification feed the health index.
Life-extension programmes, retrofit planning, modernization, and refurbish-versus-replace decisions.
LED conversion, smart AGL, digital control, remote monitoring, and upgrade business cases.
Identifying and managing discontinued products, legacy systems, and last-time-buy decisions.
One of the most important divisions — replacement triggers, decision matrices, and long-term replacement programmes.
Isolation, removal, e-waste management, recycling records, and final asset-register closure.
CMMS/EAM, digital twins, IoT monitoring, predictive analytics, and AI-based asset optimization.
The full KPI set — availability, reliability, MTBF, MTTR, lifecycle cost, and dashboard reporting.
Asset audit checklists across the register, criticality, maintenance, inspection, testing, and disposal records.
Real lifecycle case studies across every flagship asset type, plus repair-vs-replace and capital-investment decision models.
The master data layer — the 29-field standard asset record every AGL asset should carry, from Asset ID to disposal status.
The guide is built to be populated asset-by-asset, starting with runway edge lights, taxiway lights, approach lighting, airfield signs, CCRs, isolation transformers, primary/secondary cables, base cans, cable ducts, handholes and foundations — followed by asset health monitoring, reliability engineering, replacement planning, lifecycle-cost optimization, and digital asset management.
Quick answers about the AGL Asset Lifecycle Guide and how its 25 divisions fit together.
It is the strategic asset-management layer of the AGL Knowledge Hub, covering what should be done with every airfield ground lighting asset from planning through disposal. It is organized into 25 divisions and 495 topics, all published.
The Inspection Handbook asks whether the installation is physically correct, the Testing & Commissioning Manual asks whether it performs as required, the Maintenance Handbook covers how to keep an in-service asset running, and the Failure Database explains why something failed. The Asset Lifecycle Guide sits above all four and asks what should be done with the asset throughout its entire life.
Twelve stages: plan, design, procure, install, commission, operate, maintain, monitor health, repair, refurbish or upgrade, replace, decommission, and dispose or recycle. Every division maps onto one or more of them.
Divisions 01 to 07 cover the front half of the lifecycle, from planning through baseline performance. Divisions 08 to 15 cover operations, maintenance strategy, health, reliability, cost, spares, warranty and inspection. Divisions 16 to 20 cover refurbishment, upgrade, obsolescence, replacement and disposal. Divisions 21 to 25 cover digital asset management, KPIs, audit, case studies and the master asset-record database.
Division 04 feeds lifecycle thinking into design practice, and Division 07 establishes the commissioning baseline for later assessments. Division 09 keeps maintenance strategy at a strategic level while the Handbook owns the procedures, and Division 15 feeds condition grades and defect data into the asset health index. Division 11 is the lifecycle-level home for MTBF, MTTR and failure-trend data, alongside the Failure Database.
Division 25 defines a 29-field standard asset record that every AGL asset should carry, from Asset ID to disposal status.
Division 01, Asset Planning & Strategy, is the starting point of the lifecycle. From there Division 02 covers the asset register and Division 03 covers criticality and risk, and you can follow the lifecycle order or jump straight to the division you need.
The AGL Asset Lifecycle Guide is a reference — 25 divisions and 495 topics covering every stage from planning to disposal.
Precision AGL Academy is where that reference becomes practical skill, through structured training in AGL fundamentals, design, installation, testing, photometry, commissioning, maintenance and lifecycle management.
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