Transportation Department Docket FAA-2017-0905 Proposed Rule

2017-21366: Airworthiness Directives; The Boeing Company Airplanes

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Summary

We propose to supersede Airworthiness Directive (AD) 2013-01- 02, which applies to certain The Boeing Company Model 747-100, 747- 100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes; and Model 757- 200, -200PF, and -300 series airplanes. AD 2013-01-02 requires replacing the control switches of certain cargo doors. Since we issued AD 2013-01-02, additional un-commanded cargo door operation has been reported. This proposed AD would require replacement of certain cargo door control switches with a new improved switch; installation of an arm switch in certain cargo doors; operational and functional tests; and applicable on-condition actions. This proposed AD would also add airplanes to the applicability. 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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