AD 75-22-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD Helicopters, Inc. | 369 | Airworthiness Directives; Hughes Model 369, 369A, 369H, 369HS, 369HE, 369HM |
| aircraft | MD Helicopters, Inc. | 369A | Airworthiness Directives; Hughes Model 369, 369A, 369H, 369HS, 369HE, 369HM |
| aircraft | MD Helicopters, Inc. | 369H | Airworthiness Directives; Hughes Model 369, 369A, 369H, 369HS, 369HE, 369HM |
| aircraft | MD Helicopters, Inc. | 369HE | Airworthiness Directives; Hughes Model 369, 369A, 369H, 369HS, 369HE, 369HM |
| aircraft | MD Helicopters, Inc. | 369HM | Airworthiness Directives; Hughes Model 369, 369A, 369H, 369HS, 369HE, 369HM |
| aircraft | MD Helicopters, Inc. | 369HS | Airworthiness Directives; Hughes Model 369, 369A, 369H, 369HS, 369HE, 369HM |
Unsafe Condition
Failure of the tail rotor drive shaft (Part Number 369A5518) could result in emergency flight situations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace drive shaft P/N 369A5518 with P/N 369A5518-601 following Hughes Service Information Notice No. HN-86, Part I, B.3., or equivalent FAA-approved procedures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time in service after the effective date of this AD unless already accomplished
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Affected Aircraft
Hughes Model 369, 369A, 369H, 369HS, 369HE, 369HM, and military OH-6A and YOH-6A helicopters with tail rotor blades P/N 369A1613 or -3 and tail rotor drive shaft P/N 369A5518.
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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