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Airworthiness Directives; Bombardier, Inc., Airplanes
Proposed rule · Federal Register document 2026-18746
- Published
- 09/14/2026
- Comments due
- 10/29/2026
- 1 day left
- Pages
- 3
Summary
Notice of proposed rulemaking (NPRM).
The FAA proposes to adopt a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-100-1A10 airplanes. This proposed AD was prompted by reports of pitch upset upon autopilot disconnect following engine indication and crew alerting system (EICAS) messages that indicated that the autopilot was holding significant nose up or nose down forces on the elevator. This proposed AD would require revising the existing airplane flight manual (AFM) to change the procedure for the AP STAB TRIM FAIL (C) advisory message from a non- normal procedure to an emergency procedure to provide the flightcrew with emergency procedures to follow to stabilize airspeed in certain conditions. The FAA is proposing this AD to address the unsafe condition on these products.
Details
- Type
- Proposed rule
- Docket
- Docket No. FAA-2026-8808; Project Identifier MCAI-2025-01393-T
- Regulation ID (RIN)
- 2120-AA64
- CFR parts
- 14 CFR 39
- Significant under E.O. 12866
- No
- Topics
- Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety
This page summarizes a Federal Register document. Only the official Federal Register text has legal effect. Comment deadlines can be extended or reopened by a later notice.
Source: Office of the Federal Register, via the Federal Register API · Last updated 09/14/2026