Airworthiness Directives; Eurocopter France Helicopters
airworthiness · Rule · Final rule. · Published 2013-03-20 · Effective 2013-04-24 · 78 FR 17076
Document
Document number
2013-06132
Federal Register citation
78 FR 17076
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Eurocopter France
Publication date
2013-03-20
Effective date
2013-04-24
FAA docket
Docket No. FAA-2012-0795
Abstract
We are adopting a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS332C, L, and L1 helicopters to require a one-time inspection of the main rotor head (MRH) swash-plate upper bearing (bearing) for a non-smooth point (friction point). This AD was prompted by a report of the premature deterioration of the MRH bearing of the rotating star installed on a Model AS332L1 helicopter. The actions of this AD are intended to detect deterioration of the MRH bearing and to prevent overloading the scissor links which drive the main rotor system, failure of the scissors links, and subsequent loss of control of the helicopter.