AD Amdt-39-10056
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | Helicopter Systems Model MD-900 | Airworthiness Directives; McDonnell Douglas Helicopter Systems Model MD-900 Helicopters |
| aircraft | Bell | Various | Airworthiness Directives; McDonnell Douglas Helicopter Systems Model MD-900 Helicopters |
Unsafe Condition
Reduced life limits on non-serialized parts and insufficient life limits on several parts may lead to structural failure of the vertical stabilizer control system bellcrank assemblies, deck-fitting assemblies, truss strut assemblies, non-rotating swashplate assembly, collective drive link assembly, and self-aligning spherical/slider main rotor bearing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Apply specified serial numbers to left and right VSCS bellcrank assemblies, forward and aft deck-fitting assemblies, mid-forward and mid-aft truss strut assemblies; establish new life limits for non-rotating swashplate assembly, collective drive link assembly, and self-aligning spherical/slider main rotor bearing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
McDonnell Douglas Helicopter Systems Model MD-900 helicopters with specified serial numbers on the affected parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.