# Proposed AD FAA-2020-1180: Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-13-03
- Products: Safran Helicopter Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 22, 2021, 86 FR 10501
- Comments due: April 8, 2021
- Became: [AD 2021-13-03](https://openairdocs.org/ad/2021-13-03)
- Docket: FAA-2020-1180 (https://www.regulations.gov/docket/FAA-2020-1180, where comments are filed)
- Project: MCAI-2020-00517-E
- FR document: 2021-01780
- Official PDF: https://openairdocs.org/files/sha256/c3/c7/c3c71877d14a06ccd6514adc4e64f5e0f9f8d67ebe4106e6ffd3abb83eebdaba (from https://www.govinfo.gov/content/pkg/FR-2021-02-22/pdf/2021-01780.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/02/22/2021-01780/airworthiness-directives-safran-helicopter-engines-sa-type-certificate-previously-held-by-turbomeca
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5EEF0BE29289B8018625868500558446.0001
- Page: https://openairdocs.org/proposed/FAA-2020-1180

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Safran Helicopter Engines, S.A. (Safran Helicopter Engines) Arriel 2B, 2B1, 2C, 2C1, 2C2, 2S1 and 2S2 model turboshaft engines. This proposed AD was prompted by reports of non-conforming fuel filter pre-blockage pressure switches. This proposed AD would require repetitive visual inspections of the fuel filter by-pass indicator pop- up, a one-time operational test of the fuel filter pre-blockage pressure switch and, depending on the findings, replacement of the fuel filter pre-blockage pressure switch with a part eligible for installation. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 22, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-01780, comments due Apr 8, 2021 (https://www.federalregister.gov/documents/2021/02/22/2021-01780/airworthiness-directives-safran-helicopter-engines-sa-type-certificate-previously-held-by-turbomeca)

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