AD 90-12-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD Helicopters, Inc. | 369D | Airworthiness Directives; MCDONNELL DOUGLAS HELICOPTER COMPANY (MDHC) Model 369D, E, F, and FF Helicopter |
| aircraft | MD Helicopters, Inc. | 369E | Airworthiness Directives; MCDONNELL DOUGLAS HELICOPTER COMPANY (MDHC) Model 369D, E, F, and FF Helicopter |
| aircraft | MD Helicopters, Inc. | 369F | Airworthiness Directives; MCDONNELL DOUGLAS HELICOPTER COMPANY (MDHC) Model 369D, E, F, and FF Helicopter |
| aircraft | MD Helicopters, Inc. | 369FF | Airworthiness Directives; MCDONNELL DOUGLAS HELICOPTER COMPANY (MDHC) Model 369D, E, F, and FF Helicopter |
Unsafe Condition
Tail rotor bearing assembly malfunction due to bearings with black seals in specified serial ranges or unidentified serial numbers could result in loss of control and possible loss of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Check tail rotor swashplate bearing seal color (P/N 369D21832) within 10 hours' time in service. For black seals in specified serial ranges or unidentified serial numbers, perform inspections every 10 hours' time in service, replace bearings if roughness or continuous gritty feeling occurs, and replace bearings with serial numbers in specified ranges based on time in service. Record compliance and serial numbers in logbook.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MD Helicopters, Inc. Model 369D, E, F, and FF helicopters, certificated in any category.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.