airworthiness · Rule · Final rule; request for comments. · Published 2020-09-04 · Effective 2020-09-21 · 85 FR 55171
Document
Document number
2020-19533
Federal Register citation
85 FR 55171
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2020-09-04
Effective date
2020-09-21
FAA docket
Docket No. FAA-2020-0784
Abstract
The FAA is superseding Airworthiness Directive (AD) 2014-12-07 for Agusta S.p.A (Agusta) Model AB412 and AB412EP helicopters. AD 2014- 12-07 requires inspecting the rotor brake pinion (pinion) for a crack and replacing it if there is a crack. This AD retains the requirements of AD 2014-12-07 and also requires removing certain serial-numbered pinions from service. This AD was prompted by a report of an additional cracked pinion. The actions of this AD are intended to address an unsafe condition on these products.