Airworthiness Directive · Amendment 39-8979 · Robinson Helicopter Company Helicopters
Robinson Helicopter Company Helicopters
This AD applies to Robinson Helicopter Company R22, R22 ALPHA, R22 BETA, R22 MARINER.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD) that is applicable to Robinson Helicopter Company Model R22 helicopters. This action requires an initial inspection and repetitive checks and visual inspections for corrosion and cracks on certain main rotor blades. This amendment is prompted by reports of chordwise cracks found in the main rotor blades. The actions specified in this AD are intended to prevent abnormal in-flight vibrations, failure of the main rotor blade, 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
