Airworthiness Directives; Eurocopter France Helicopters
airworthiness · Rule · Final rule; request for comments. · Published 2013-04-19 · Effective 2013-05-06 · 78 FR 23462
Document
Document number
2013-08459
Federal Register citation
78 FR 23462
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Eurocopter France
Publication date
2013-04-19
Effective date
2013-05-06
FAA docket
Docket No. FAA-2013-0307
Abstract
We are adopting an airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS332C, AS332L, and AS332L1 helicopters and superseding an AD for Model AS332L2 and EC225LP helicopters. This AD requires inspecting the chip detector and modifying the chip collector, both installed on the main gearbox (MGB). This AD is prompted by an investigation which showed a failure within the epicyclic reduction gear module (epicyclic module) resulted in the rupture of the MGB case and separation of the main rotor head of a Model AS332L2 helicopter. These actions are intended to prevent failure of the MGB and subsequent loss of control of the helicopter.