Airworthiness Directives; Bell Textron Canada Limited Helicopters
airworthiness · Rule · Final rule. · Published 2021-09-08 · Effective 2021-10-13 · 86 FR 50237
Document
Document number
2021-19251
Federal Register citation
86 FR 50237
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Bell Textron Canada Limited
Publication date
2021-09-08
Effective date
2021-10-13
FAA docket
Docket No. FAA-2021-0377
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited Model 505 helicopters. This AD was prompted by three occurrences of metallic debris in the engine oil lubrication system causing the 12 volts direct current (VDC) reference voltage to be shorted to ground and loss of important flight information to the pilot. This AD requires replacing a certain part- numbered relay panel assembly. The FAA is issuing this AD to address the unsafe condition on these products.