AD 89-11-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD Helicopters, Inc. | 369A | Airworthiness Directives; MCDONNELL DOUGLAS HELICOPTER COMPANY Model 369A (OH-6A) and H Series Helicopters |
| aircraft | MD Helicopters, Inc. | 369H | Airworthiness Directives; MCDONNELL DOUGLAS HELICOPTER COMPANY Model 369A (OH-6A) and H Series Helicopters |
Unsafe Condition
Fatigue failure of the tail rotor strap pack assembly, which could result in loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct an inspection of the helicopter log book to determine if a listed fiberglass blade is or has been installed. Replace strap pack assemblies with 3,200 or more hours' time in service within the next 50 hours' time in service. Replace those with less than 3,200 hours' time in service before accumulating 3,250 hours' time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 15 days after the effective date of this AD, and subsequent replacements as specified based on hours' time in service.
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Affected Aircraft
MCDONNELL DOUGLAS HELICOPTER COMPANY Model 369A (OH-6A) and H series helicopters equipped with strap pack assemblies P/N 369A1706-BSC and fiberglass tail rotor blades P/N 369A1607-BSC, 369A1710-BSC, -9, -11, or -13.
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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