Summary
This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2007-19-53, which was sent previously to all known U.S. owners and operators of the specified Bell Helicopter Textron, Inc. (BHTI) model helicopters by individual letters. This AD requires replacing each affected tail rotor blade (blade) with an airworthy blade with a serial number not listed in the applicability of this AD. This AD is prompted by three incidents in which blade tip weights were slung from the blades during flight causing significant vibration. The actions specified by this AD are intended to prevent loss of a blade tip weight, loss of a blade, and subsequent loss of control of the helicopter.
Directive Details
AD Number
FAA-2007-0180
Document Number
E7-22439
Type
Rule
Publication Date
November 20, 2007
Effective Date
December 5, 2007
Affected Manufacturer
Bell Helicopter Textron, Inc. Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412EP, and 412CF
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2007-0180
Topics
Official Documents
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