# Proposed AD FAA-2008-1311: Honeywell International Inc., T5313 and T5317 Series Turboshaft Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-15-13
- Products: Honeywell International
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 16, 2008, 73 FR 76291
- Comments due: February 17, 2009
- Became: [AD 2009-15-13](https://openairdocs.org/ad/2009-15-13)
- Docket: FAA-2008-1311 (https://www.regulations.gov/docket/FAA-2008-1311, where comments are filed)
- Project: 2007-NE-48-AD
- FR document: E8-29712
- Official PDF: https://openairdocs.org/files/sha256/a6/ae/a6aed00e27bfac85d81070b51e0794119bd88d0473637fa62c3105e626d32f41 (from https://www.govinfo.gov/content/pkg/FR-2008-12-16/pdf/E8-29712.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/12/16/E8-29712/airworthiness-directives-honeywell-international-inc-t5313-and-t5317-series-turboshaft-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0BCEB5DFEF9F862D86257521005266AC.0001
- Page: https://openairdocs.org/proposed/FAA-2008-1311

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Honeywell International Inc., T5313 and T5317 series turboshaft engines. This proposed AD would require initial and repetitive visual inspections and initial and repetitive ultrasonic inspections. This proposed AD results from eight instances of cracks in combustion chamber housings (CCHs). Two of the instances resulted in an engine shutdown during flight. We are proposing this AD to detect cracks in the CCH, which could result in rupture of the CCH, leading to loss of engine power and damage to the helicopter.

## Notices in this docket

- Dec 16, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-29712, comments due Feb 17, 2009 (https://www.federalregister.gov/documents/2008/12/16/E8-29712/airworthiness-directives-honeywell-international-inc-t5313-and-t5317-series-turboshaft-engines)

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