Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Portions of DOT are affected by a lapse in appropriations. Website information may be outdated, transactions may be delayed, and inquiries may not be answered until funding is restored. Please monitor this page for updates.

Action

Notice of proposed rulemaking (NPRM).

Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This proposed AD was prompted by a report of multiple in-service failures of engine feed check valves, which have resulted in fuel imbalance conditions in flight. This proposed AD would require repetitive replacement of the left- and right-side engine feed check valves with new engine feed check valves, as specified in a Transport Canada AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

Document

View PDF