2018-19436: Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
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We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 A-1, MBB-BK 117A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, MBB-BK 117 C-1, and MBB-BK 117 C-2 helicopters. This proposed AD would require repetitive inspections of the tail rotor (T/R) gearbox housing. This proposed AD is prompted by a report that a crack was found in a T/ R gearbox housing. 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.
Rulemaking docket
We haven’t pulled this rulemaking’s full docket yet. View docket FAA-2017-1085 on Regulations.gov →
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