# Proposed AD FAA-2006-23706: Honeywell International Inc. Turboprop Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-15-08
- Products: Honeywell International
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 29, 2016, 81 FR 17412
- Comments due: May 31, 2016
- Became: [AD 2006-15-08](https://openairdocs.org/ad/2006-15-08)
- Docket: FAA-2006-23706 (https://www.regulations.gov/docket/FAA-2006-23706, where comments are filed)
- Project: 2006-NE-03-AD
- FR document: 2016-06936
- Official PDF: https://openairdocs.org/files/sha256/d3/82/d3824fc1e0c6a153bfada83c59d4f1205fa6cd9df4f9c8aa3e070b75bd60f2ed (from https://www.govinfo.gov/content/pkg/FR-2016-03-29/pdf/2016-06936.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/03/29/2016-06936/airworthiness-directives-honeywell-international-inc-turboprop-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8B171ED94082BC0C86257F85004FB5E2.0001
- Page: https://openairdocs.org/proposed/FAA-2006-23706

## Summary

We propose to supersede airworthiness directive (AD) 2015-12- 04, which applies to all Honeywell International Inc. (Honeywell) TPE331-1, -2, -2UA, -3U, -3UW, -5, -5A, -5AB, -5B, -6, -6A, -10, -10AV, -10GP, -10GT, -10P, -10R, -10T, -10U, -10UA, -10UF, -10UG, -10UGR, - 10UR, -11U, -12JR, -12UA, -12UAR, and -12UHR turboprop engines with certain Woodward fuel control unit (FCU) assemblies, installed. AD 2015-12-04 currently requires initial and repetitive dimensional inspections of the affected fuel control drives and insertion of certain airplane operating procedures into the applicable flight manuals. This proposed AD would correct compliance requirements and relax the inspection interval. We are proposing this AD to prevent failure of the fuel control drive, damage to the engine, and damage to the airplane.

## Notices in this docket

- Mar 8, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-3260, comments due May 8, 2006 (https://www.federalregister.gov/documents/2006/03/08/E6-3260/airworthiness-directives-honeywell-international-inc-tpe331-series-turboprop-engines)
- Mar 19, 2014: Notice of proposed rulemaking (NPRM)., FR document 2014-06029, comments due May 19, 2014 (https://www.federalregister.gov/documents/2014/03/19/2014-06029/airworthiness-directives-honeywell-international-inc-turboprop-engines)
- Mar 29, 2016: Notice of proposed rulemaking (NPRM)., FR document 2016-06936, comments due May 31, 2016 (https://www.federalregister.gov/documents/2016/03/29/2016-06936/airworthiness-directives-honeywell-international-inc-turboprop-engines)

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