AD 76-19-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD Helicopters, Inc. | 369H | Airworthiness Directives; Hughes Model 369H, 369HS, 369HE and 369HM Helicopters |
| aircraft | MD Helicopters, Inc. | 369HE | Airworthiness Directives; Hughes Model 369H, 369HS, 369HE and 369HM Helicopters |
| aircraft | MD Helicopters, Inc. | 369HM | Airworthiness Directives; Hughes Model 369H, 369HS, 369HE and 369HM Helicopters |
| aircraft | MD Helicopters, Inc. | 369HS | Airworthiness Directives; Hughes Model 369H, 369HS, 369HE and 369HM Helicopters |
Unsafe Condition
Fatigue failures of the damper plunger could result in loss of the stabilizer strut and possible contact with the tail rotor.
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Required Actions
Disassemble the stabilizer strut P/N 369A2001-601 and inspect the damper plunger P/N 369A2130 or P/N 369A2130-3 for cut threads within 25 hours time in service after the effective date. If cut threads are found, before further flight, either replace the damper plunger with one having rolled threads or inspect for cracks using dye penetrant or magnetic particle inspection. If cracks are found, replace the damper plunger immediately; if not, replace within 100 hours additional time in service. Allow equivalent methods or alternate parts with FAA approval.
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Compliance Time
within 25 hours time in service after the effective date of this AD
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Affected Aircraft
Hughes Model 369H, 369HS, 369HE, and 369HM helicopters equipped with shock mounted stabilizer strut assembly P/N 369A2001-601.
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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