Transportation Department Docket FAA-2017-0334 Proposed Rule

2017-09325: Airworthiness Directives; Bombardier, Inc., Airplanes

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Summary

We propose to supersede Airworthiness Directive (AD) 2014-25- 01, for certain Bombardier, Inc., Model DHC-8-400 series airplanes. AD 2014-25-01 currently requires modifying the nose landing gear (NLG) trailing arm and installing a new pivot pin retention mechanism. Since we issued AD 2014-25-01, we have received reports of discrepancies of a certain bolt at the pivot pin link, resulting in corrosion of the bolt. This proposed AD would instead require modifying the NLG shock strut assembly. We are proposing this AD to address the 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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