Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters
airworthiness · Rule · Final rule; request for comments. · Published 2018-10-22 · Effective 2018-11-06 · 83 FR 53171
Document
Document number
2018-22414
Federal Register citation
83 FR 53171
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Bell Helicopter Textron Canada Limited
Publication date
2018-10-22
Effective date
2018-11-06
FAA docket
Docket No. FAA-2018-0834
Abstract
We are publishing a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (Bell) Model 429 helicopters. This AD was sent previously to all known U.S. owners and operators of these helicopters as Emergency AD 2018-16-51, dated July 26, 2018, which superseded Emergency AD 2018-15-51, dated July 20, 2018. This AD requires inspecting the tail rotor (T/R) gearbox installation, inspecting the T/R gearbox retaining hardware and support attachment point areas, and replacing each nut. This AD is prompted by two reports of T/R gearbox assemblies loosely attached to the gearbox support. The actions of this AD are intended to address an unsafe condition on these products.