AD Proposed for MD Helicopters 369 and 500 Torque Tube and Roller Bearings
The FAA has proposed adopting a new Airworthiness Directive (AD) for certain MD Helicopters Model 369 and 500N helicopters. This proposed AD was prompted by a report of a seized and damaged roller bearing in the pilot interconnecting cyclic torque tube assembly. This proposed AD would require repetitively inspecting the torque tube assembly for freedom-of-movement, corrosion and cracks as well as the roller bearings for corrosion and degradation. Depending on the results, this proposed AD would require replacing parts or accomplishing additional inspections.
Comments are due September 23rd. You can find the proposed AD here.