Airworthiness Directive · Amendment 39-9247 · Bell Helicopter Textron Canada Limited Helicopters
Bell Helicopter Textron Canada Limited Helicopters
This AD applies to Bell Helicopter Textron Canada Limited 206A, 206A-1 (OH-58A), 206B, 206B-1, 206L, 206L-1, 206L-3, 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 Bell Helicopter Textron, Inc. Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4 helicopters, that requires removal and replacement of certain crosstube assemblies (crosstubes). This amendment is prompted by two accidents attributed to crosstube failures and 27 field reports that indicated corrosion or metal fatigue may cause a failure of the affected crosstubes. The actions specified by this AD are intended to prevent failure of the crosstubes 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.
