AD 95-03-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD Helicopters, Inc. | 369 | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369A | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369D | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369E | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369F | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369FF | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369H | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HE | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HM | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369HS | Airworthiness Directives; McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A Series Helicopters |
Unsafe Condition
Debonding and separation of the tail rotor blade abrasion strip during flight, resulting in severe out-of-balance conditions and subsequent separation of the tail rotor gearbox from the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the tail rotor blade abrasion strip for debonding within 25 hours time-in-service or 90 calendar days, whichever occurs first. Install stainless steel abrasion tape over the inboard end of the abrasion strip and replace blades with new-design abrasion strips within 1,000 hours time-in-service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time-in-service or 90 calendar days, whichever occurs first, and thereafter at intervals not to exceed 100 hours time-in-service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
McDonnell Douglas Helicopter Systems and Hughes Helicopters, Inc. Model 369, OH-6A, and YOH-6A series helicopters with tail rotor blade assemblies part numbers 369A1613-7, 369A1613-503, 369A1613-505, 369A1613-509, 369D21606, 369D21606-509, 369D21613-11, 369D21613-31, 369D21613-41, 369D21613-51, 369D21613-71, 369D21615, 369D21615-21, 369D21615-41, or 421-088.
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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