AD Amdt-39-10481
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | Various | Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369 (YOH-6A), 369A (OH-6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, and 500N Helicopters |
Unsafe Condition
Failure of the overrunning clutch assembly outer race could result in loss of engine drive to the rotor system and a subsequent forced landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace all overrunning clutch outer races with airworthy ones, regardless of heat treatment numbers. The requirement applies to Model 500N helicopters which were not included in the previous AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
McDonnell Douglas Helicopter Systems Models 369 (YOH-6A), 369A (OH-6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, and 500N 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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