Improper Maintenance Could Lead To Loss Of Tail Rotor Drive
The FAA has issued a Special Airworthiness Information Bulletin reminding owners, operators, and maintainers of the importance of properly maintaining the tail rotor drive shaft flexible couplings on Bell Helicopter Textron Canada Limited Model 206, 206A, 206B, 206B-1, 206L, 206L-1, 206L-3, and 206L-4 helicopters and other models with similar design features. Failure to properly maintain the coupling may result in loss of coupling fastening hardware and subsequent loss of tail rotor drive.