# Airworthiness Directives; McCauley Propeller Systems Models 2A36C23/84B-0 and 2A36C82/84B-2 Propellers
> **Rule** · Final rule; request for comments. · Published 1998-12-18 · Effective 1999-01-04 · 63 FR 69996
## Document
- **Document number:** 98-33028
- **Category:** airworthiness
- **Manufacturer:** McCauley
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 63 FR 69996
- **Publication date:** 1998-12-18
- **Effective date:** 1999-01-04
- **FAA docket:** Docket No. 98-ANE-34-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to McCauley Propeller Systems (formerly McCauley Accessory Division, The Cessna Aircraft Company) Models 2A36C23/84B-0 and 2A36C82/84B-2 propellers. This action supersedes priority letter AD 89-26-08 that currently requires penetrant inspections for cracks in the propeller blade threaded retention area, and modifying the propeller hub to a red dye filled configuration. This action adds an explanatory note to better define the AD applicability and makes minor adjustments to compliance section language to reflect current AD practice. This amendment is prompted by reports of confusion from operators as to if the AD is applicable to their particular model propeller. The actions specified by this AD are intended to prevent possible cracks in the propeller blade threaded retention area from progressing to blade separation, which can result in loss of aircraft control.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/12/18/98-33028/airworthiness-directives-mccauley-propeller-systems-models-2a36c2384b-0-and-2a36c8284b-2-propellers)
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