Transportation Department Docket FAA-2021-0694 Proposed Rule

2021-18111: Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

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Summary

The FAA proposes to adopt a new airworthiness directive (AD) for De Havilland Aircraft of Canada Limited Model DHC-8-401 and -402 airplanes. This proposed AD was prompted by reports of a possible hard contact between the #2 top high level sensor (HLS) terminal screw head and the #6 outer wing fuel access panel stiffener flange. This proposed AD would require removing and replacing or reworking the #6 outer wing fuel access panel assembly. The FAA is 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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