Airworthiness Directives; Hartzell Propeller Inc. Model HC-E4A- 3(A,I) Propellers
airworthiness · Rule · Final rule; request for comments. · Published 1998-01-28 · Effective 1998-02-12 · 63 FR 4160
Document
Document number
98-1742
Federal Register citation
63 FR 4160
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Hartzell
Publication date
1998-01-28
Effective date
1998-02-12
FAA docket
Docket No. 97-ANE-35-AD
Abstract
This amendment adopts a new airworthiness directive (AD) that is applicable to Hartzell Propeller Inc. Model HC-E4A-3(A,I) propellers. This action requires replacing propeller blade counterweight clamp bolts with improved bolts. This amendment is prompted by reports of a manufacturing defect in the counterweight clamp bolts that resulted in the blade counterweight separating and causing damage to the propeller. The actions specified in this AD are intended to prevent counterweight clamp bolt failure, which can result in propeller blade counterweight separation and damage to the propeller and aircraft.