Airworthiness Directive · Amendment 39-11203 · Bell Helicopter Textron Canada Limited Helicopters
Bell Helicopter Textron Canada Limited Helicopters
This AD applies to Bell Helicopter Textron Canada Limited 206L-4.
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), applicable to BHTC Model 206L-4 helicopters, that requires replacing certain hydraulic relief valves (valves) with airworthy valves. This amendment is prompted by a pilot s report of intermittent hydraulic pressure in the flight controls that was caused by a defective hydraulic relief valve. The actions specified by this AD are intended to prevent intermittent hydraulic pressure to the flight controls and subsequent loss of control of the helicopters
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.
