# Proposed AD FAA-2025-1728: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-24-11
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 5, 2025, 90 FR 37434
- Comments due: September 19, 2025
- Became: [AD 2025-24-11](https://openairdocs.org/ad/2025-24-11)
- Docket: FAA-2025-1728 (https://www.regulations.gov/docket/FAA-2025-1728, where comments are filed)
- Project: MCAI-2025-00076-T
- FR document: 2025-14830
- Official PDF: https://openairdocs.org/files/sha256/61/3c/613c720a29f38ebeba6a1159f1c61dd1f1e17d002b8c3f173e5ae0b78db2bfb7 (from https://www.govinfo.gov/content/pkg/FR-2025-08-05/pdf/2025-14830.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/08/05/2025-14830/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-14830-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-1728

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Bombardier, Inc., Model CL-600-2A12 (601) and CL-600-2B16 (601- 3A, 601-3R, and 604 Variants) airplanes. This proposed AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 5, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-14830, comments due Sep 19, 2025 (https://www.federalregister.gov/documents/2025/08/05/2025-14830/airworthiness-directives-bombardier-inc-airplanes)

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