Airworthiness Directive · Amendment 39-10845 · Robinson Helicopter Company Model R44 Helicopters
Robinson Helicopter Company Model R44 Helicopters
Superseded. A later AD replaced this one: AD 99-23-01. Comply with the one in force.
Model R44 helicopters, serial numbers (S/N) 0001 through 0159, except S/N 0143, 0150, and 0156, with cyclic control pilot's grip assembly (grip assembly), part number (P/N) A756-6 Revision N or prior, installed, certificated in any category.
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.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
