# Proposed AD FAA-2025-2557: Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-15-03
- Products: Safran Helicopter Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 26, 2025, 90 FR 46368
- Comments due: November 10, 2025
- Became: [AD 2026-15-03](https://openairdocs.org/ad/2026-15-03)
- Docket: FAA-2025-2557 (https://www.regulations.gov/docket/FAA-2025-2557, where comments are filed)
- Project: MCAI-2025-00533-E
- FR document: 2025-18711
- Official PDF: https://openairdocs.org/files/sha256/03/30/033061b9be3cfebe54aa90f10611720fadc8837d2a358b21d87a11863fcc96dd (from https://www.govinfo.gov/content/pkg/FR-2025-09-26/pdf/2025-18711.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/09/26/2025-18711/airworthiness-directives-safran-helicopter-engines-sa-type-certificate-previously-held-by-turbomeca
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-18711-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-2557

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. (Safran) Model Arriel 2E engines. This proposed AD was prompted by the determination that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising existing maintenance or inspection program, to incorporate the airworthiness limitations section (ALS) of the existing approved aircraft maintenance program (AMP), as applicable. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 26, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-18711, comments due Nov 10, 2025 (https://www.federalregister.gov/documents/2025/09/26/2025-18711/airworthiness-directives-safran-helicopter-engines-sa-type-certificate-previously-held-by-turbomeca)

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