AD 91-23-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 77 | Airworthiness Directives; Beech Models 77 Airplanes |
Unsafe Condition
Failure of the nose landing gear fork and airplane damage that could result.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Fluorescent penetrant inspect the nose landing gear fork for cracks within 50 hours time-in-service after the effective date. If cracks are found, replace the fork and axle assembly with part number 108-820010-653 before further flight. If no cracks, perform subsequent fluorescent penetrant inspections every 500 hours TIS and visual inspections every 100 hours TIS between. Replace if cracks are detected during any inspection.
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Compliance Time
Within the next 50 hours time-in-service after the effective date of this AD
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Affected Aircraft
Beech Model 77 (Skipper) airplanes with serial numbers WA-1 through WA-312 without part number 108-820010-653 nose landing gear fork and axle assembly.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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