Airworthiness Directives; Agusta S.p.A Helicopters (Type Certificate Currently Held by AgustaWestland S.p.A) (Agusta)
airworthiness · Rule · Final rule; request for comments. · Published 2014-06-03 · Effective 2014-06-18 · 79 FR 31857
Document
Document number
2014-12719
Federal Register citation
79 FR 31857
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Agusta S.p.A
Publication date
2014-06-03
Effective date
2014-06-18
FAA docket
Docket No. FAA-2014-0336
Abstract
We are adopting a new airworthiness directive (AD) for Agusta Model A109A, A109A II, A109C, A109E, A109K2, A109S, AW109SP, A119, and AW119 MKII helicopters. This AD requires inspecting and replacing certain part-numbered main rotor swashplate support nuts. This AD is prompted by a report of two cracked nuts found on an A109S helicopter. These actions are intended to detect a cracked nut and prevent failure of the main rotor system, and subsequent loss of control of the helicopter.