# Proposed AD 95-ANE-66: Hamilton Standard 14RF and 14SF Series, and Hamilton Standard/British Aerospace Model 6/5500/F Propellers

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 96-25-20
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 13, 1995, 60 FR 63988
- Comments due: February 12, 1996
- Became: [AD 96-25-20](https://openairdocs.org/ad/96-25-20)
- Docket: 95-ANE-66
- FR document: 95-30352
- Official PDF: https://openairdocs.org/files/sha256/28/8c/288cd42f2ba79fe464a657089ce65900832d8a60a6093afaa8ae3519a5d7f9be (from https://www.govinfo.gov/content/pkg/FR-1995-12-13/pdf/95-30352.pdf)
- Federal Register: https://www.federalregister.gov/documents/1995/12/13/95-30352/airworthiness-directives-hamilton-standard-14rf-and-14sf-series-and-hamilton-standardbritish
- Page: https://openairdocs.org/proposed/95-ANE-66

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Hamilton Standard 14RF and 14SF series, and Hamilton Standard/British Aerospace Model 6/5500/F propellers. This proposal would require initial and repetitive inspections of critical components, and removal, and replacement with serviceable parts, of those critical components that do not meet the return to service criteria. This proposal is prompted by failure modes effects analysis (FMEA), certification test data, engineering analysis, and repair actions performed at overhaul depots. The actions specified by the proposed AD are intended to prevent loss of propeller control due to failure of critical components, which could result in loss of control of the aircraft.

## Notices in this docket

- Dec 13, 1995: Notice of proposed rulemaking (NPRM). (first notice), FR document 95-30352, comments due Feb 12, 1996 (https://www.federalregister.gov/documents/1995/12/13/95-30352/airworthiness-directives-hamilton-standard-14rf-and-14sf-series-and-hamilton-standardbritish)

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