AD 91-05-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schweizer Aircraft Corporation | 269C | Airworthiness Directives; Schweizer Aircraft Corporation (Hughes Helicopters, Inc.) Model 269C Series Helicopters |
Unsafe Condition
Fatigue failure of the magnesium tailboom center attachment (saddle) fittings which could result in loss of the tailboom of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the magnesium tailboom center attachment fitting and tailboom visually using a 10-power or higher magnifying glass, perform dye penetrant inspection, and replace the magnesium fitting with an aluminum one as specified. Compliance intervals vary based on total time in service.
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Compliance Time
Prior to further flight after the effective date of this AD, and thereafter at intervals not to exceed 50 hours' time in service from the last inspection for visual inspections; within 25 hours' time in service after the effective date and thereafter at intervals not to exceed 100 hours' time in service for dye penetrant inspections. Replacement must be done prior to attaining 500 hours' total time in service or within the next 100 hours time in service depending on initial time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Schweizer Aircraft Corporation (Hughes Helicopters, Inc.) Model 269C series helicopters, certificated in any category.
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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