AD 2000-13-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | Deutschland GmbH Model EC 135 | Airworthiness Directives; Eurocopter Deutschland GmbH Model EC 135 Helicopters |
Unsafe Condition
Misaligned or cracked bearing supports and loose bearing attachment bolts can lead to loss of drive to the tail rotor and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct a tail rotor drive shaft vibration survey and install a Fenestron Shaft Retrofit Kit. Install double bearing supports and struts. Inspect bearing supports for cracks and replace if cracked. Inspect bearing attach hardware lock plates for bent-open tabs and slippage marks, and replace loose hardware. Perform inspections at intervals not exceeding 50 hours time-in-service.
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
Eurocopter Deutschland GmbH Model EC 135 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 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.