Airworthiness Directives; Eurocopter France Model EC 120B Helicopters
airworthiness · Rule · Final rule. · Published 2011-12-05 · Effective 2011-12-20 · 76 FR 75772
Document
Document number
2011-30939
Federal Register citation
76 FR 75772
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Eurocopter France Model EC 120B
Publication date
2011-12-05
Effective date
2011-12-20
FAA docket
Docket No. FAA-2011-0448
Abstract
This amendment adopts a new airworthiness directive (AD) for the Eurocopter France Model EC 120B helicopters. This AD requires modifying the pilot cyclic control friction device by replacing a certain thrust washer with two thrust washers. This AD is prompted by an incident in which the pilot encountered a sudden restriction of the cyclic control movement during flight. The actions specified by this AD are intended to prevent jamming of a pilot cyclic control stick and subsequent loss of control of the helicopter.