Airworthiness Directives; Airbus Helicopters (formerly Eurocopter France)
airworthiness · Rule · Final rule. · Published 2016-04-13 · Effective 2016-05-18 · 81 FR 21713
Document
Document number
2016-07979
Federal Register citation
81 FR 21713
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus
Publication date
2016-04-13
Effective date
2016-05-18
FAA docket
Docket No. FAA-2015-5914
Abstract
We are adopting a new airworthiness directive (AD) for Airbus Helicopters Model SA341G and SA342J helicopters. This AD requires repetitive inspections of a certain part-numbered main rotor hub torsion bar (torsion bar). This AD was prompted by several cases of corrosion in the metal strands of the torsion bar. The actions of this AD are intended to detect corrosion and prevent failure of the torsion bar, loss of a main rotor blade, and subsequent loss of control of the helicopter.