The condition-intelligence and health-management layer of the AGL Asset Lifecycle Guide. Division 07 establishes the commissioning baseline, Division 08 monitors operational performance, and Division 09 establishes the maintenance strategy — Division 10 brings these information streams together to determine the current health of each AGL asset, how fast it is deteriorating, and what action may be required before performance or reliability becomes unacceptable.
The question this division answers — What is the current health of each AGL asset, how fast is it deteriorating, and what action may be required before performance or reliability becomes unacceptable?
Division 07 establishes the commissioning baseline, Division 08 monitors operational performance, and Division 09 establishes the maintenance strategy. Division 10 consolidates these streams into a current health status, a deterioration trend, and a forward-looking RUL — which then feeds the later renewal, replacement, capital-planning and lifecycle-cost decisions.
Determines the current physical and technical condition of an AGL asset. It should not rely on one source of information alone.
Physical condition — damage, corrosion, contamination, mechanical deterioration.
Electrical condition — insulation, connections, electrical performance, earthing.
Optical condition — light output, lens condition, alignment, photometric performance.
Operational condition — availability, functional performance, control response, alarm performance.
Asset Health Indicators (AHIs) are measurable parameters used to determine whether an asset is healthy, deteriorating, or approaching an unacceptable condition.
An asset health indicator should provide evidence about the current or developing condition of the asset.
Health scoring converts multiple condition/performance inputs into a structured assessment. The exact definitions and calculation method should be formally approved by the airport.
A health score should not replace the underlying evidence. The supporting inspection and test records should remain available.
The Asset Health Index (AHI) provides a consolidated representation of asset health. The exact weighting should be defined through the airport's approved asset-health methodology.
An asset may be highly critical but healthy, highly critical and unhealthy, low criticality but unhealthy, or low criticality and healthy. Division 03 determines how important the asset is; Division 10 determines how healthy the asset currently is.
Inspection results are one of the primary inputs to asset-health assessment.
The trend is more useful than considering each inspection independently.
Testing history provides objective technical evidence of asset health.
The Division 07 baseline should remain the reference point. Future test results should be compared against:
Maintenance history provides another important indicator of asset health.
An asset requiring increasingly frequent intervention may indicate deterioration even if it has not yet experienced complete failure.
Failure history should be incorporated into health assessment.
A single failure does not necessarily mean poor health. However, repeated failures, increasing maintenance, and performance degradation together may indicate a deteriorating asset. This is where Division 10 should connect to the Failure Records & Reliability Engineering framework.
Performance trends compare current performance against historical and baseline values.
This provides an early-warning mechanism before complete functional failure.
Condition trends track the physical/technical condition of the asset over time.
Degradation monitoring identifies progressive deterioration.
The objective is to identify degradation before it becomes an operational failure.
Remaining Useful Life (RUL) represents an estimate of how much useful operational life remains before the asset reaches a defined end-of-life condition or requires major intervention.
RUL is an estimate, not a guaranteed replacement date. An asset may have an estimated RUL of five years, but a sudden failure or accelerated deterioration can change that estimate.
RUL estimation should progressively improve as lifecycle data becomes available.
This is much stronger than simply using RUL = Design Life − Age, because actual operating condition may differ substantially from the original assumptions.
Each asset should have a standardized health status. The exact classification thresholds should be defined and approved rather than assumed.
The asset-health dashboard should provide a high-level view of the airport's AGL asset portfolio. The actual data should come from the controlled asset-management system.
Critical assets should receive enhanced health monitoring. This links directly with Division 03.
High Criticality + Poor Health → Immediate attention.
High Criticality + Healthy → Enhanced monitoring.
Low Criticality + Poor Health → Risk-based intervention.
Health alerts identify assets requiring attention.
The health index should be periodically reviewed rather than treated as a permanent number.
The 18 topics kept exactly as the condition-intelligence structure, each mapped to the primary question it answers.
| No. | Topic | Primary Question |
|---|---|---|
| 01 | Asset Condition Assessment | What is the current physical/technical condition? |
| 02 | Asset Health Indicators | What measurable parameters signal health? |
| 03 | Health Scoring | How is condition/performance converted to a score? |
| 04 | Asset Health Index | What is the consolidated health picture? |
| 05 | Inspection Results | What do inspections show over time? |
| 06 | Testing History | What does technical testing evidence show? |
| 07 | Maintenance History | Is intervention frequency increasing? |
| 08 | Failure History | Are failures repeating or worsening? |
| 09 | Performance Trends | Is performance deviating from baseline? |
| 10 | Condition Trends | How is physical condition changing year on year? |
| 11 | Degradation Monitoring | Is deterioration progressive? |
| 12 | Remaining Useful Life | How much useful life remains? |
| 13 | RUL Estimation | How should the RUL estimate be refined? |
| 14 | Health-Status Classification | What is the asset's standardized status? |
| 15 | Asset-Health Dashboard | What does the portfolio look like at a glance? |
| 16 | Critical Asset Monitoring | Are critical assets monitored more closely? |
| 17 | Asset Health Alerts | Which assets need attention now? |
| 18 | Health-Index Review | How often is the health index revisited? |
Division 03 and Division 10 work together. Criticality tells you how important the asset is; health tells you how well the asset is doing.
| Criticality | Healthy | Watch | Poor | Critical |
|---|---|---|---|---|
| Low | Routine | Monitor | Plan | Risk-based action |
| Medium | Routine | Increased monitoring | Planned intervention | Priority action |
| High | Enhanced monitoring | Engineering review | Priority intervention | Immediate action |
| Safety-Critical | Strict monitoring | Urgent review | Immediate planning | Immediate operational/engineering action |
The mandatory outputs of Division 10.
Asset health should be determined from evidence accumulated throughout the asset lifecycle — not from age alone. Division 10 takes the raw lifecycle evidence generated by Divisions 02–09 and converts it into a current health status, a deterioration trend, and a forward-looking RUL assessment.
This is the point where the Asset Lifecycle Guide starts becoming a true condition-based asset-management system rather than simply a collection of asset records.
Division 03 and Division 10 remain deliberately distinct: criticality tells you how important the asset is, while health tells you how well the asset is doing — the combination drives the engineering decision.
Quick answers about Asset Health Monitoring in the AGL Asset Lifecycle Guide.
Division 10 is the condition-intelligence layer. It covers 18 topics on condition assessment, health indicators, health scoring, the asset health index, inspection and testing history, degradation monitoring, RUL estimation and the asset-health dashboard.
It determines the current physical and technical condition of an AGL asset and should not rely on one source of information alone. Inputs include visual inspection, electrical, photometric and functional testing, maintenance findings and failure history.
Asset Health Indicators (AHIs) are measurable parameters used to determine whether an asset is healthy, deteriorating or approaching an unacceptable condition. Examples include inspection condition, electrical and photometric results, failure frequency and repeat failures.
Health scoring converts multiple condition and performance inputs into a structured assessment, for example on a five-level scale from 5 (Excellent) to 1 (Critical). The exact definitions and calculation method should be formally approved by the organization.
The Asset Health Index provides a consolidated representation of asset health. The exact weighting should be defined through the airport's approved asset-health methodology, and the index should be reviewed periodically rather than treated as a permanent number.
Inspection results, testing history, maintenance history and failure history all feed the health assessment. Performance trends and condition trends compare current values against historical and baseline values.
RUL is an estimate of how much useful operational life remains before the asset reaches a defined end-of-life condition or requires major intervention. It draws on current condition, age, operating hours, failure history and performance degradation, and estimation should improve as lifecycle data becomes available.
The asset-health dashboard gives a high-level view of the airport's AGL portfolio, with data drawn from the controlled asset-management system. Health alerts flag assets needing attention, such as a score below threshold, rapid deterioration, significant baseline deviation or repeated failures, and critical assets get enhanced monitoring.
Effective AGL asset management starts with knowing an asset's condition before it fails, not after.
Learn how health indicators, health scoring, degradation monitoring, remaining useful life and health-status classification connect across the complete AGL asset lifecycle.
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