AD 2015-12-06

final rule
Data completeness: 70%

Airworthiness Directives; Learjet Inc. Airplanes

AD Number
2015-12-06
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2014-0249
FR Citation
80 FR 34258

Applicability

TypeManufacturerModelDetails
aircraft Learjet Inc Airworthiness Directives; Learjet Inc. Airplanes

Unsafe Condition

Non-conforming windshield supports (coupe rails) could result in uncontrolled cabin depressurization and compromise the capability of the windshield to withstand a bird strike.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect coupe rails visually for gouging, scratches, and missing radius; perform ultrasound inspection to measure dimensions of lower coupe rails; conduct eddy current inspection to detect cracks; replace lower coupe rails if necessary; revise maintenance or inspection program as applicable.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Learjet Inc. Model 45 airplanes

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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