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🔧 '''Maintenance program''' in the [[Definition:Aviation insurance | aviation insurance]] context refers to the structured schedule of inspections, overhauls, component replacements, and airworthiness directives that an aircraft operator follows to keep its fleet in a condition acceptable to aviation authorities — and, by extension, to [[Definition:Insurance carrier | insurers]] who underwrite hull and liability coverage on those aircraft. Regulatory agencies such as the [[Definition:Federal Aviation Administration (FAA) | FAA]], [[Definition:European Union Aviation Safety Agency (EASA) | EASA]], and their counterparts in jurisdictions like China (CAAC), Japan (JCAB), and Singapore (CAAS) approve maintenance programs before an aircraft enters service, and continuous compliance is a legal prerequisite for flight operations. From an insurance standpoint, the quality and rigor of an operator's maintenance program is one of the most significant [[Definition:Underwriting | underwriting]] factors in determining hull and liability terms.

⚙️ Underwriters evaluate maintenance programs during the policy placement and renewal process, often requesting documentation on the operator's approved maintenance organization, its adherence to manufacturer-recommended service bulletins, engine shop visit history, and whether it follows a phased "continuous" maintenance approach or the older "block" overhaul method. An operator enrolled in a manufacturer-backed power-by-the-hour program — such as those offered by Rolls-Royce or CFM International — may receive more favorable treatment because engine maintenance costs and standards are externally managed. Conversely, gaps in maintenance records or deferred inspections raise red flags that can result in [[Definition:Exclusion | policy exclusions]], higher [[Definition:Hull deductible | deductibles]], or outright declination of coverage. When a claim arises, the investigation will typically examine whether the aircraft was maintained in accordance with its approved program; if the loss is traceable to maintenance negligence, the insurer may deny or subrogate the claim against the maintenance provider.

📋 The link between maintenance discipline and insurability has grown stronger as aircraft have become more technologically complex and as [[Definition:Data analytics | data analytics]] have given underwriters better tools to assess operator quality. Airlines and operators that invest in predictive maintenance — using engine health monitoring, airframe fatigue tracking, and digital logbook platforms — present a demonstrably lower risk profile, and progressive insurers increasingly factor these capabilities into pricing. For [[Definition:Aircraft lessor | lessors]], the lessee's maintenance program directly affects the residual value of the asset, which is why [[Definition:Leased aircraft insurance | lease agreements]] prescribe detailed maintenance standards and often require that the operator carry sufficient insurance to cover maintenance-related contingencies. In this way, the maintenance program sits at the intersection of safety regulation, asset protection, and insurance risk management.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Aviation insurance]]
* [[Definition:Hull all risks (HAR)]]
* [[Definition:Airworthiness]]
* [[Definition:Underwriting]]
* [[Definition:Leased aircraft insurance]]
* [[Definition:Subrogation]]
{{Div col end}}

Definition:Maintenance program - Revision history

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