Airworthiness Directives; Hartzell Propeller Inc. Steel Hub Turbine Propellers
airworthiness · Rule · Final rule; request for comments. · Published 2009-05-20 · Effective 2009-06-04 · 74 FR 23625
Document
Document number
E9-11518
Federal Register citation
74 FR 23625
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Hartzell
Publication date
2009-05-20
Effective date
2009-06-04
FAA docket
Docket No. FAA-2009-0114
Abstract
The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. steel hub turbine propellers, with any counterweight slug attachment bolts, part number (P/N) B-3386-14H, LFC manufacturing lot 224, installed. This AD requires identifying and removing all counterweight slug attachment bolts, P/N B-3386-14H, LFC manufacturing lot 224, from service and installing serviceable bolts. This AD results from two reports of failure of the bolts that attach the propeller blade counterweight slug, and separation of the counterweight slug which led to propeller vibration and damage to the propeller spinner. We are issuing this AD to prevent separation of the propeller blade counterweight slug, which could lead to injury and damage to the airplane.