Transportation Department Docket FAA-2017-0404 Proposed Rule

2019-27978: Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France)

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Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2008-24-04 for Eurocopter France (now Airbus Helicopters) Model AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. AD 2008-24-04 requires repetitively inspecting the lubricating pump and checking the magnetic chip detector plug (chip detector) and the main gearbox (MGB) oil-sight glass. Since the FAA issued AD 2008-24-04, Airbus Helicopters has developed an alteration of the MGB oil flow distribution that corrects the unsafe condition. This proposed AD would retain the requirements of AD 2008-24-04 and would allow the option of altering the MGB oil flow distribution as a terminating action for the inspections. The actions of this proposed AD are intended to address an unsafe condition on these products.

The agency’s own summary, as published.

What this changes

Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.

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