Airworthiness Directives; Bell Helicopter Textron Inc. Helicopters
airworthiness · Rule · Final rule. · Published 2020-02-11 · Effective 2020-03-17 · 85 FR 7653
Document
Document number
2020-02587
Federal Register citation
85 FR 7653
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Bell Helicopter Textron Inc.
Publication date
2020-02-11
Effective date
2020-03-17
FAA docket
Docket No. FAA-2017-0052
Abstract
The FAA is superseding Airworthiness Directive (AD) 2015-04-04 for Bell Helicopter Textron Inc. (Bell) Model 412 and 412EP helicopters. AD 2015-04-04 required revising the Rotorcraft Flight Manual (RFM) for your helicopter and installing a placard to limit flights to visual flight rules (VFR) and prohibit night operations because of failing inverters. This AD requires replacing the affected inverter with a new inverter. This AD was prompted by numerous failures of inverters. The FAA is issuing this AD to address the unsafe condition on these products.