airworthiness · Rule · Final rule; request for comments. · Published 2020-02-26 · Effective 2020-03-12 · 85 FR 10971
Document
Document number
2020-03840
Federal Register citation
85 FR 10971
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Leonardo S.p.A.
Publication date
2020-02-26
Effective date
2020-03-12
FAA docket
Docket No. FAA-2020-0150
Abstract
The FAA is adopting a new airworthiness directive (AD) for Leonardo S.p.A. Model AW189 helicopters. This AD requires inspecting the hydraulic fluid level on each tail rotor (T/R) damper and depending on the inspection results, removing the T/R damper from service and reporting information or repetitively inspecting the T/R damper. This AD is prompted by reports of major leakage of hydraulic fluid in T/R dampers. This condition could result in degradation of T/R damper performance; multiple leaking T/R dampers could result in T/R damage and subsequent loss control of the helicopter. The actions of this AD are intended to address an unsafe condition on these products.