Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) Series Propellers
airworthiness · Rule · Final rule; request for comments. · Published 2006-09-08 · Effective 2006-09-25 · 71 FR 52994
Document
Document number
E6-14691
Federal Register citation
71 FR 52994
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Hartzell
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.