# Proposed AD FAA-2025-0477: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-12-01
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 26, 2025, 90 FR 13709
- Comments due: May 12, 2025
- Became: [AD 2025-12-01](https://openairdocs.org/ad/2025-12-01)
- Docket: FAA-2025-0477 (https://www.regulations.gov/docket/FAA-2025-0477, where comments are filed)
- Project: MCAI-2024-00422-T
- FR document: 2025-05026
- Official PDF: https://openairdocs.org/files/sha256/83/88/8388d6c2f01611f4d53561102955bb8b5d277b1df43c208190b780adef3fc9fc (from https://www.govinfo.gov/content/pkg/FR-2025-03-26/pdf/2025-05026.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/03/26/2025-05026/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-05026-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-0477

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This proposed AD was prompted by a report that incorrect information was found in certain calculation tables in a section of the airplane flight manual (AFM) that addresses certain slat-flap conditions. This proposed AD would require revising the Non-Normal Procedures section of the existing AFM to provide the flightcrew with corrected procedures to use in certain slat-flap conditions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Mar 26, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-05026, comments due May 12, 2025 (https://www.federalregister.gov/documents/2025/03/26/2025-05026/airworthiness-directives-bombardier-inc-airplanes)

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