AD 2005-09-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France Model EC120 | Airworthiness Directives; Eurocopter France Model EC120 Helicopters |
Unsafe Condition
Incorrect positioning of the tail rotor drive shaft damper half-clamps could result in interference with the drive shaft, leading to scoring on the drive shaft, failure of the drive shaft, 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
Inspect the tail rotor drive shaft damper half-clamps to determine if they are centered on the friction ring. If not correctly positioned, center the half-clamps on the friction ring using the specified procedures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 hours time-in-service (TIS) for helicopters with 500 or more hours TIS; or no later than 550 hours TIS for helicopters with less than 500 hours TIS.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter France Model EC120B helicopters, serial number 1362 and below, 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 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.