# Proposed AD FAA-2021-0316: GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Turboprop Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-15-10
- Products: GE Aviation Czech s.r.o.
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 20, 2021, 86 FR 20465
- Comments due: June 4, 2021
- Became: [AD 2021-15-10](https://openairdocs.org/ad/2021-15-10)
- Docket: FAA-2021-0316 (https://www.regulations.gov/docket/FAA-2021-0316, where comments are filed)
- Project: MCAI-2020-00461-E
- FR document: 2021-08056
- Official PDF: https://openairdocs.org/files/sha256/3e/1f/3e1f850d28c579e0f8ae246804cfb165b874dacc24a696a80a6c50d6f5594691 (from https://www.govinfo.gov/content/pkg/FR-2021-04-20/pdf/2021-08056.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/04/20/2021-08056/airworthiness-directives-ge-aviation-czech-sro-type-certificate-previously-held-by-walter-engines-as
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A8E14D0AFA2940C7862586BD007B78FF.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0316

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all GE Aviation Czech s.r.o. (GEAC) H75-200, H80-100, and H80-200 model turboprop engines. This proposed AD was prompted by several reports of engine gas generator speed (Ng) rollbacks occurring below idle on GEAC H75-200, H80-100, and H80-200 model turboprop engines. This proposed AD would require an inspection of a certain part number (P/N) fuel control unit (FCU) and, if deficiencies are detected, replacement of the FCU with a part eligible for installation. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 20, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-08056, comments due Jun 4, 2021 (https://www.federalregister.gov/documents/2021/04/20/2021-08056/airworthiness-directives-ge-aviation-czech-sro-type-certificate-previously-held-by-walter-engines-as)

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