Airworthiness Directives; Eurocopter France Helicopters
airworthiness · Rule · Final rule; request for comments. · Published 2012-09-25 · Effective 2012-10-10 · 77 FR 58925
Document
Document number
2012-23448
Federal Register citation
77 FR 58925
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Eurocopter France
Publication date
2012-09-25
Effective date
2012-10-10
FAA docket
Docket No. FAA-2012-1018
Abstract
We are adopting a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model EC 155B, EC155B1, SA-365N1, AS- 365N2 and AS 365 N3 helicopters to require visually inspecting the tail rotor hub (TRH) for a crack and removing the TRH if a crack exists. This AD is prompted by reports of cracks on two TRHs. These actions are intended to prevent the tail rotor from jamming, which could lead to reduced or loss of control of the helicopter.