routineRule

AD FAA-2011-0448

Airworthiness Directives; Eurocopter France Model EC 120B Helicopters

Summary

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.

Directive Details

AD Number

FAA-2011-0448

Document Number

2011-30939

Type

Rule

Publication Date

December 5, 2011

Effective Date

December 20, 2011

Affected Manufacturer

Eurocopter France Model EC 120B

Criticality

routine

Emergency

Docket ID

Docket No. FAA-2011-0448

Topics

Air transportationAircraftAviation safetyIncorporation by referenceSafety

Official Documents

View PDF View on Federal Register

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