Airworthiness Directives; Hartzell Propeller Inc. Model HC-E5N-3( ), HC-E5N-3( )(L), and HC-E5B-5( ) Propellers
airworthiness · Rule · Final rule; request for comments. · Published 2007-11-29 · Effective 2007-12-14 · 72 FR 67564
Document
Document number
E7-23119
Federal Register citation
72 FR 67564
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Hartzell
Publication date
2007-11-29
Effective date
2007-12-14
FAA docket
Docket No. FAA-2007-28656
Abstract
The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. Model HC-E5N-3( ), HC-E5N-3( )(L), and HC-E5B- 5( ) propellers. This AD requires a onetime eddy current inspection of the propeller hub mounting bolt holes and replacement of the propeller hub if cracked. This AD results from the discovery of a five-bladed propeller hub with a large crack on the mounting flange of the hub. We are issuing this AD to prevent propeller hub failure, blade separation, damage to the airplane, and possible loss of airplane control.