# Proposed AD FAA-2021-0875: Continental Aerospace Technologies, Inc. and Continental Motors Reciprocating Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-04-04
- Products: Continental Aerospace Technologies
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 12, 2021, 86 FR 56658
- Comments due: November 26, 2021
- Became: [AD 2022-04-04](https://openairdocs.org/ad/2022-04-04)
- Docket: FAA-2021-0875 (https://www.regulations.gov/docket/FAA-2021-0875, where comments are filed)
- Project: AD-2021-00675-E
- FR document: 2021-22095
- Official PDF: https://openairdocs.org/files/sha256/72/41/7241128cfe49354b1a49af89181f6466da18f1f8080cd68b93690f70c6fc6566 (from https://www.govinfo.gov/content/pkg/FR-2021-10-12/pdf/2021-22095.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/10/12/2021-22095/airworthiness-directives-continental-aerospace-technologies-inc-and-continental-motors-reciprocating
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5D3FCD1EE3B754228625876C004B932F.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0875

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Continental Aerospace Technologies, Inc. C-125, C145, IO- 360, IO-470, IO-550, O-300, O-470, TSIO-360, TSIO-520 series model reciprocating engines and certain Continental Motors IO-520 series model reciprocating engines with a certain oil filter adapter installed. This proposed AD was prompted by reports of two accidents that were the result of power loss due to oil starvation. This proposed AD would require removal of the oil filter adapter fiber gasket and its replacement with a copper gasket. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 12, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-22095, comments due Nov 26, 2021 (https://www.federalregister.gov/documents/2021/10/12/2021-22095/airworthiness-directives-continental-aerospace-technologies-inc-and-continental-motors-reciprocating)

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