# Proposed AD FAA-2010-0499: Bombardier-Rotax GmbH 912 F Series and 912 S Series Reciprocating Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-18-14
- Products: Bombardier-Rotax
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 17, 2010, 75 FR 27487
- Comments due: July 1, 2010
- Became: [AD 2010-18-14](https://openairdocs.org/ad/2010-18-14)
- Docket: FAA-2010-0499 (https://www.regulations.gov/docket/FAA-2010-0499, where comments are filed)
- Project: 2010-NE-06-AD
- FR document: 2010-11643
- Official PDF: https://openairdocs.org/files/sha256/90/18/90180b2d0856cae1c4967453ff2abdd6f3e6d427d530f13fb619c86d1d18972c (from https://www.govinfo.gov/content/pkg/FR-2010-05-17/pdf/2010-11643.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/05/17/2010-11643/airworthiness-directives-bombardier-rotax-gmbh-912-f-series-and-912-s-series-reciprocating-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/67E5DA1704E1BA4186257727004C8C6D.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0499

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Due to high fuel pressure, caused by exceeding pressure in front of the mechanical fuel pump (e.g. due to an electrical fuel pump), in limited cases a deviation in the fuel supply could occur. This can result in exceeding of the fuel pressure and might cause engine malfunction and/or massive fuel leakage.

We are proposing this AD to prevent the pump from exceeding the fuel pressure, which could result in engine malfunction or a massive fuel leak. These conditions could cause loss of control of the airplane or a fire.

## Notices in this docket

- May 17, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-11643, comments due Jul 1, 2010 (https://www.federalregister.gov/documents/2010/05/17/2010-11643/airworthiness-directives-bombardier-rotax-gmbh-912-f-series-and-912-s-series-reciprocating-engines)

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