The operational bridge between the AGL Inspection Handbook and the AGL Maintenance Handbook. Division 11 does not describe what maintenance is performed on an asset — it describes how an inspection finding becomes a maintenance action: identified, classified, prioritized, triggered, repaired, verified, closed, and trended.
Core principle: Inspect → Identify Defect → Classify → Prioritize → Trigger Maintenance → Repair → Verify → Close → Trend. No significant inspection finding should be lost between inspection and maintenance closure — this is what makes Division 11 a closed-loop control system rather than a records log.
Every inspection finding in this division moves through the same eleven-step sequence, regardless of asset type, and is graded against the same four classification levels.
Classification determines response. Categories should ultimately be aligned with the airport's approved operational and safety criteria.
| Classification | Typical Response | Maintenance Action |
|---|---|---|
| Critical | Immediate / urgent | Emergency or priority corrective maintenance |
| Major | Prioritized | Corrective maintenance |
| Minor | Scheduled | Routine corrective maintenance |
| Observation | Monitor | Follow-up inspection |
| Repeat defect | Engineering review | Root-cause / condition assessment |
A finding is only as useful as the description behind it. The description must be specific enough to act as a maintenance trigger without repeating the inspection.
Grouped by stage of the inspection-to-maintenance chain — click any topic to expand.
Standard: the description must be specific enough to serve as a usable maintenance trigger, not a generic statement.
Use: the exact classification criteria established by the airport's approved inspection/maintenance system.
Connects to: Division 05 — Emergency Maintenance.
Planner responsibility: ensure major defects do not remain indefinitely on the observation list.
Note: minor does not mean "no action required" — it means the required response is less urgent.
Every observation needs: owner, follow-up date, condition criterion, escalation trigger.
Definition: the point at which an inspection finding becomes a maintenance action.
Standard: a work order should contain enough information to act without repeating the inspection unnecessarily.
Trigger: runway inspection finding → fixture maintenance work order.
Standard: the finding should identify the specific fixture and location.
Action: convert the finding into the appropriate PAPI maintenance activity.
Reference: Division 07 — CCR Maintenance procedure.
Reference: Division 08 — Isolation Transformer Maintenance.
Reference: Division 09 — Cable Maintenance.
Reference: Division 10 — Connector Maintenance.
Preserve the distinction: AGL field-equipment fault vs. ALCMS monitoring/control fault.
Not enough: completion should never be based solely on "work completed."
Purpose: confirm the original defect has actually been corrected.
Standard: evidence requirements should be proportional to the significance of the defect.
Standard: repeated defects should trigger engineering review rather than endless repetition of the same repair.
Standard: the escalation should be documented.
Never: let a temporary repair disappear into the maintenance system as if it were a permanent closure.
Standard: the replacement recommendation should be linked to the asset history.
Standard: frequency changes must be documented and approved through the applicable maintenance/asset-management process.
Repeat repair is not necessarily successful maintenance. The objective is to eliminate the underlying failure mechanism, not to keep repeating the same fix.
Normal corrective maintenance.
Monitor recurrence.
Engineering review.
Root-cause investigation.
Condition / replacement assessment.
Quick answers about inspection-driven maintenance, based on the topics in this division.
It is the operational bridge between the AGL Inspection Handbook and the AGL Maintenance Handbook. It does not describe what maintenance is done on an asset; it describes how an inspection finding becomes a maintenance action.
Division 11 (Inspection-Driven Maintenance) contains 30 topics in four groups: Group A Inspection Finding to Maintenance (8 topics), Group B Inspection-Based Maintenance (10 topics), Group C Closure (6 topics) and Group D Condition Escalation (6 topics).
Inspect, identify the defect, classify, prioritize, trigger maintenance, repair, verify, close and trend. No significant inspection finding should be lost between inspection and maintenance closure.
Every finding moves through eleven steps: Inspect, Identify, Classify, Prioritize, Trigger, Work Order, Maintain, Test, Post-Inspect, Close and Trend.
Critical findings get an immediate or urgent response through emergency or priority corrective maintenance; Major findings are prioritized for corrective maintenance; Minor findings are scheduled for routine corrective maintenance; Observations are monitored with follow-up inspection; and a repeat defect goes to engineering review and root-cause or condition assessment. Categories should ultimately align with the airport's approved operational and safety criteria.
It must identify the asset, the defect and the condition. 'Light problem' is weak, whereas 'Runway edge light at identified location has damaged lens and visible contamination' gives the maintenance team a usable trigger without repeating the inspection.
Date, time and location; asset, asset ID and circuit; inspection type; defect description; a photograph or other evidence where applicable; and the inspector and initial condition.
A first occurrence gets normal corrective maintenance, a second occurrence is monitored for recurrence, a repeated occurrence goes to engineering review, persistent recurrence to root-cause investigation, and continued recurrence to condition or replacement assessment. Repeat repair is not necessarily successful maintenance; the aim is to eliminate the underlying failure mechanism.
Inspection-driven maintenance is more than recording what an inspection finds.
Build the technical knowledge to translate inspection findings into prioritized maintenance action, close the loop between defect and correction, and keep the asset register accurate.
Inspect with purpose. Act on findings. Close the loop.
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