airworthiness · Rule · Final rule; request for comments. · Published 2020-10-08 · Effective 2020-10-23 · 85 FR 63431
Document
Document number
2020-22259
Federal Register citation
85 FR 63431
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Airbus
Publication date
2020-10-08
Effective date
2020-10-23
FAA docket
Docket No. FAA-2020-0856
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model SA-365N, SA-365N1, AS-365N2, AS 365 N3, EC 155B, EC155B1, AS350B3, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This AD requires inspecting the main rotor (M/R) servo actuators, and depending on the inspection results, replacing the affected part, applying a slippage mark, and reporting information. This AD was prompted by an incident of a sudden, strong nose-up attitude followed by intensive vibrations and increased loads on the flight controls during a cruise flight. The actions of this AD are intended to address an unsafe condition on these products.