# Proposed AD FAA-2012-0002: Continental Motors, Inc. Reciprocating Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2016-16-12
- Products: Continental Motors
- Product type: Engine
- Action: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: August 28, 2015, 80 FR 52212
- Comments due: September 28, 2015
- Became: [AD 2016-16-12](https://openairdocs.org/ad/2016-16-12)
- Docket: FAA-2012-0002 (https://www.regulations.gov/docket/FAA-2012-0002, where comments are filed)
- Project: 2011-NE-42-AD
- FR document: 2015-21205
- Official PDF: https://openairdocs.org/files/sha256/90/11/90113c83c4197841115949fd424a8f3a664914ab5eaf495f773429a742703095 (from https://www.govinfo.gov/content/pkg/FR-2015-08-28/pdf/2015-21205.pdf)
- Federal Register: https://www.federalregister.gov/documents/2015/08/28/2015-21205/airworthiness-directives-continental-motors-inc-reciprocating-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EA4C960634A511DE86257EAF004D0D06.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0002

## Summary

We are revising an earlier proposed airworthiness directive (AD) for certain Airmotive Engineering Corp. (AEC) replacement parts manufacturer approval (PMA) cylinder assemblies marketed by Engine Components International Division (ECi). We subsequently issued an initial supplemental NPRM (SNPRM) that proposed to modify the schedule for removal of the affected cylinder assemblies, added that overhauled affected cylinder assemblies be removed within 80 hours, eliminated a reporting requirement, and removed a requirement for initial and repetitive inspections. This second SNPRM reopens the comment period to allow the public the chance to comment on additional information added to the docket of this proposed rule. We are proposing this SNPRM to prevent failure of the cylinder assemblies, which could lead to failure of the engine, in-flight shutdown, and loss of control of the airplane.

## Notices in this docket

- Aug 12, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-19414, comments due Oct 11, 2013 (https://www.federalregister.gov/documents/2013/08/12/2013-19414/airworthiness-directives-continental-motors-inc-reciprocating-engines)
- Sep 26, 2013: Notice of proposed rulemaking (NPRM); extension of comment period., FR document 2013-23431, comments due Dec 11, 2013 (https://www.federalregister.gov/documents/2013/09/26/2013-23431/airworthiness-directives-continental-motors-inc-reciprocating-engines)
- Mar 12, 2014: Availability of an Initial Regulatory Flexibility Analysis (IRFA), FR document 2014-05234, comments due May 12, 2014 (https://www.federalregister.gov/documents/2014/03/12/2014-05234/airworthiness-directives-continental-motors-inc-reciprocating-engines-initial-regulatory-flexibility)
- Jan 8, 2015: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 2015-00152, comments due Feb 23, 2015 (https://www.federalregister.gov/documents/2015/01/08/2015-00152/airworthiness-directives-continental-motors-inc-reciprocating-engines)
- Aug 28, 2015: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 2015-21205, comments due Sep 28, 2015 (https://www.federalregister.gov/documents/2015/08/28/2015-21205/airworthiness-directives-continental-motors-inc-reciprocating-engines)

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