# Airworthiness Directives; McCauley Propeller Systems 1A103/TCM Series Propellers
> **Rule** · Final rule; request for comments. · Published 1997-04-04 · Effective 1997-04-24 · 62 FR 16064
## Document
- **Document number:** 97-7594
- **Category:** airworthiness
- **Manufacturer:** McCauley
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 62 FR 16064
- **Publication date:** 1997-04-04
- **Effective date:** 1997-04-24
- **FAA docket:** Docket No. 97-ANE-06
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to McCauley Propeller Systems 1A103/TCM series propellers. This action supersedes priority letter AD 95-21-01 that currently requires visual inspections for cracks in the propeller hub of certain propellers using a 10X power magnifying-glass. This action requires an initial inspection for cracks in the propeller hub in accordance with a dye penetrant inspection procedure, replacement of propellers with cracks that do not meet acceptable limits, rework of propellers with cracks that meet acceptable limits, and repetitive inspections of all affected propellers. This amendment is prompted by development of a dye penetrant inspection and rework procedures. The actions specified by this AD are intended to prevent propeller separation due to hub fatigue cracking, which can result in loss of control of the aircraft.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/04/04/97-7594/airworthiness-directives-mccauley-propeller-systems-1a103tcm-series-propellers)
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