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Notice of proposed rulemaking (NPRM).

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-2A12 airplanes. This proposed AD was prompted by reports that the pivot door pressure seals on the thrust reverser fixed structure were found disbonded or missing on several airplanes. This proposed AD would require inspecting the pivot door pressure seals and accomplishing applicable corrective actions. This proposed AD would also require a functional test of the thrust reversers. The FAA is proposing this AD to address the unsafe condition on these products.

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