Airworthiness Directives; Eurocopter France Model AS350B, AS350B1, AS350B2, AS350B3, AS350BA, AS350C, AS350D, and AS350D1 Helicopters
airworthiness · Rule · Final rule. · Published 2007-03-19 · Effective 2007-04-23 · 72 FR 12727
Document
Document number
E7-4851
Federal Register citation
72 FR 12727
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2007-03-19
Effective date
2007-04-23
FAA docket
Docket No. FAA-2006-25085
Abstract
This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (Eurocopter) model helicopters that requires replacing a certain hydraulic drive belt (drive belt). Also required is reducing the lubrication time interval for a certain hydraulic pump drive shaft (drive shaft). This amendment is prompted by in-flight failures of the drive belt and the drive shaft. The actions specified by this AD are intended to prevent in-flight failure of the drive belt or drive shaft, loss of hydraulic power to the flight control system, and subsequent loss of control of the helicopter.