AD 2000-18-52
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Bell Helicopter Textron, Inc.-Manufactured Model OH-13E, OH-13H, and OH-13S Helicopters |
| aircraft | Bell | Helicopter Textron | Airworthiness Directives; Bell Helicopter Textron, Inc.-Manufactured Model OH-13E, OH-13H, and OH-13S Helicopters |
Unsafe Condition
Fatigue crack in the threads of the main rotor blade grip, leading to grip failure, loss of a main rotor blade, and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the threads of each main rotor blade grip using liquid penetrant or eddy current inspection for cracks. Replace any cracked grip with an airworthy grip before further flight. Establish a retirement life of 1200 hours time-in-service (TIS) for affected grips.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 hours TIS since initial installation or within 10 hours TIS for grips with 100 or more hours TIS, and thereafter at intervals not to exceed 200 hours TIS.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Helicopter Textron, Inc.-manufactured Model OH-13E, OH-13H, and OH-13S helicopters.
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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