Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters
airworthiness · Rule · Final rule. · Published 1998-10-19 · Effective 1998-11-23 · 63 FR 55783
Document
Document number
98-27760
Federal Register citation
63 FR 55783
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Robinson Helicopter Company Model R44
Publication date
1998-10-19
Effective date
1998-11-23
FAA docket
Docket No. 97-SW-01-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to Robinson Helicopter Company (Robinson) Model R44 helicopters, that requires removing and replacing the cyclic control pilot's grip assembly (grip assembly) with an airworthy grip assembly. This amendment is prompted by a report of a crack in the welded corner of a grip assembly. The actions specified by this AD are intended to prevent use of a grip assembly that may crack, resulting in failure of the grip assembly and subsequent loss of control of the helicopter.