AD 77-05-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron, Inc. | 212 | Airworthiness Directives; Bell Model 212 Helicopters |
Unsafe Condition
Failure of certain main rotor blades due to possible corrosion or fretting in the blade weight bolt holes or other defects in the spar.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove main rotor blades (P/N 204-012-001-23 and -29) from further service prior to attaining 1500 hours' total blade time in service if they have less than 1475 hours' time in service on the effective date. Blades with 1475 or more hours' time in service must be removed within 25 hours' time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated.
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Affected Aircraft
Bell Model 212 helicopters with main rotor blades P/N 204-012-001-23 and -29, excluding P/N 204-012-001-33.
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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