Airworthiness Directive · Amendment 39-11244 · Bell Helicopter Textron Canada Model 230 Helicopters
Bell Helicopter Textron Canada Model 230 Helicopters
Model 230 helicopters, serial numbers 23001 through 23038, certificated in any category.
This amendment adopts a new airworthiness directive (AD) that is applicable to Bell Helicopter Textron Canada (BHTC) Model 230 helicopters. This action requires verifying the torque on the vertical fin attachment bolts (bolts); inspecting the vertical fin and tailboom fittings for cracks, elongation of bolt holes, distortion and corrosion; and re-verifying the torque on the bolts after inspecting the fittings. This amendment is prompted by a report of a loose vertical fin, which was discovered during a post-flight inspection. The actions specified in this AD are intended to prevent loss of torque of the bolts, which could lead to fracture of the bolts, separation of the vertical fin from the helicopter, and 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.
