# Proposed AD FAA-2025-3435: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-14-09
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 21, 2025, 90 FR 48414
- Comments due: November 20, 2025
- Became: [AD 2026-14-09](https://openairdocs.org/ad/2026-14-09)
- Docket: FAA-2025-3435 (https://www.regulations.gov/docket/FAA-2025-3435, where comments are filed)
- Project: MCAI-2025-01602-T
- FR document: 2025-19609
- Official PDF: https://openairdocs.org/files/sha256/97/67/97671cb8bf0c0ab0b6c51f6a0661b0a84958e59917a0eab680f3dfc430d3c5e0 (from https://www.govinfo.gov/content/pkg/FR-2025-10-21/pdf/2025-19609.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/10/21/2025-19609/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-19609-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-3435

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2025-17-12, which applies to all Bombardier, Inc., Model CL-600-1A11 (600) and CL-600-2A12 (601) airplanes, and certain Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. AD 2025-17-12 requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2025-17-12, the FAA has determined that certain serial numbers for affected Model CL-600-2B16 (604 Variants) airplanes are not included in the applicability of AD 2025-17-12. This proposed AD would continue to require the actions specified in AD 2025-17-12 and would add airplanes to the applicability. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 21, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-19609, comments due Nov 20, 2025 (https://www.federalregister.gov/documents/2025/10/21/2025-19609/airworthiness-directives-bombardier-inc-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.