# Proposed AD 2001-NE-11-AD: Honeywell International Inc. TPE331-3, -5, -6, -8, -10, and -11 Series Turboprop and TSE331-3 Series Turboshaft Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-25-02
- Products: Honeywell International
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 25, 2002, 67 FR 48577
- Comments due: September 23, 2002
- Became: [AD 2002-25-02](https://openairdocs.org/ad/2002-25-02)
- Docket: 2001-NE-11-AD
- FR document: 02-18816
- Official PDF: https://openairdocs.org/files/sha256/c1/ff/c1ff8fc9913cd884a52e4ba2f39e474b4bf912ac43f1c98fac92c44cfad76a39 (from https://www.govinfo.gov/content/pkg/FR-2002-07-25/pdf/02-18816.pdf)
- Federal Register: https://www.federalregister.gov/documents/2002/07/25/02-18816/airworthiness-directives-honeywell-international-inc-tpe331-3-5-6-8-10-and-11-series-turboprop-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CEA1099961CE033986256C010051D5DC.0001
- Page: https://openairdocs.org/proposed/2001-NE-11-AD

## Summary

The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to Honeywell International Inc. (formerly AlliedSignal Inc., Garrett Turbine Engine Company and AiResearch Manufacturing Company of Arizona) TPE331-3, -5, -6, -8, -10, and -11 series turboprop and TSE331-3 series turboshaft engines. This proposal would require removing weld repaired first stage compressor impellers from service. This proposal is prompted by an uncontained TPE331-11U turboprop engine failure and an in-flight shutdown due to the separation of the first stage Ti 6-4 compressor impeller. The actions specified by the proposed AD are intended to prevent uncontained engine failures, in-flight shutdowns, and secondary damage.

## Notices in this docket

- Jul 25, 2002: Notice of proposed rulemaking (NPRM). (first notice), FR document 02-18816, comments due Sep 23, 2002 (https://www.federalregister.gov/documents/2002/07/25/02-18816/airworthiness-directives-honeywell-international-inc-tpe331-3-5-6-8-10-and-11-series-turboprop-and)

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