Airworthiness Directives; Eurocopter France (Eurocopter) Helicopters
airworthiness · Rule · Final rule; request for comments. · Published 2013-10-25 · Effective 2013-10-25 · 78 FR 63853
Document
Document number
2013-24816
Federal Register citation
78 FR 63853
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Eurocopter France (Eurocopter)
Publication date
2013-10-25
Effective date
2013-10-25
FAA docket
Docket No. FAA-2013-0878
Abstract
We are adopting a new airworthiness directive (AD) for Eurocopter Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This AD requires certain inspections of each tail rotor pitch horn assembly (pitch horn) for a crack, and if there is a crack, before further flight, replacing the pitch horn with an airworthy pitch horn. This AD is prompted by a report of a crack in the yoke of a pitch horn. These actions are intended to detect a crack in the pitch horn to prevent failure of the pitch horn, loss of the anti-torque function, and subsequent loss of control of the helicopter.