# Airworthiness Directives; Bombardier, Inc., Airplanes

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Transportation Department; Federal Aviation Administration |
| Type | Proposed rule |
| Action | Notice of proposed rulemaking (NPRM). |
| Published | 2026-09-14 |
| Comments close | 2026-10-29 |
| Significant | No |
| CFR parts | 14 CFR 39 |
| Summary | 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 flight |
| Document number | 2026-18746 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/14/2026-18746/airworthiness-directives-bombardier-inc-airplanes). Last refreshed: 2026-11-03T19:10:06.902Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.