Airworthiness Directives; Bell Textron Canada Limited (Type Certificate Previously Held by Bell Helicopter Textron Canada Limited) Helicopters
airworthiness · Rule · Final rule. · Published 2021-09-27 · Effective 2021-11-01 · 86 FR 53203
Document
Document number
2021-20829
Federal Register citation
86 FR 53203
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Bell Textron Canada Limited (Type Certificate Previously Held by Bell Helicopter Textron Canada Limited)
Publication date
2021-09-27
Effective date
2021-11-01
FAA docket
Docket No. FAA-2021-0513
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited (Bell) Model 429 helicopters. This AD was prompted by reports of tail rotor gearbox assemblies found loose on the gearbox support. This AD requires repetitive torque checks of the tail rotor gearbox attachment hardware, and corrective action if necessary. The FAA is issuing this AD to address the unsafe condition on these products.