# Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) Series Propellers
> **Rule** · Final rule; request for comments. · Published 2006-09-08 · Effective 2006-09-25 · 71 FR 52994
## Document
- **Document number:** E6-14691
- **Category:** airworthiness
- **Manufacturer:** Hartzell
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 71 FR 52994
- **Publication date:** 2006-09-08
- **Effective date:** 2006-09-25
- **FAA docket:** Docket No. FAA-2006-25244
## Abstract

The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) series propellers with non- suffix serial number (SN) propeller hubs installed on Lycoming O-, IO-, LO-, and AEIO-360 series reciprocating engines. This AD requires initial and repetitive eddy current inspections (ECI) of the front cylinder half of the propeller hub for cracks and removing cracked hubs from service before further flight. In addition, this AD allows installation of an improved design propeller hub (suffix SN "A" or "B") as terminating action to the repetitive ECI. This AD results from a report of a propeller blade separating from a propeller hub. We are issuing this AD to prevent failure of the propeller hub causing blade separation and subsequent loss of airplane control.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/09/08/E6-14691/airworthiness-directives-hartzell-propeller-inc--hc--2y----series-propellers)
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