# Airworthiness Directives; Hamilton Sundstrand Model 247F Propellers
> **Rule** · Final rule; request for comments. · Published 2001-12-28 · Effective 2002-01-14 · 66 FR 67074
## Document
- **Document number:** 01-31328
- **Category:** airworthiness
- **Manufacturer:** Hamilton Sundstrand Model 247F
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 66 FR 67074
- **Publication date:** 2001-12-28
- **Effective date:** 2002-01-14
- **FAA docket:** Docket No. 2001-NE-40-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Hamilton Sundstrand model 247F propellers. This action requires a one-time rework of certain model 247F propellers by removing all four propeller blades from service, replacing those blades with serviceable propeller blades, and marking the propeller with a new part number. This amendment is prompted by nine reports of the blades partially slipping at the bond joint between the blade tulip and the composite blade airfoil interface. The actions specified in this AD are intended to prevent the loss of a propeller blade, which may result in loss of airplane control.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/12/28/01-31328/airworthiness-directives-hamilton-sundstrand-model-247f-propellers)
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