COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Bell Helicopter Textron Canada (BHTC) 222 Series Helicopters AD/BELL 222/6 Amdt 1 Directional Hydraulic Actuator P/N 222-382-002-101 4/87 Applicability: All model 222 helicopters with serial numbers 47008 to 47089. All model 222B helicopters with serial numbers 47131 to 47148. All model 222U helicopters with serial numbers 47501 to 47555. Requirement: Action in accordance with either: Model 222 and 222B helicopters: Bell Alert Service Bulletin 222-85-32 Rev A. Model 222U helicopters: Bell Alert Service Bulletin 222U-85-7 Rev A. Compliance: Before issue of Certificate of Airworthiness. Background: While hover taxying, a model 222U experienced loss of directional control when tail rotor control was lost due to the rod end bearing pulling out of the hydraulic actuator piston rod. This Directive has been amended to extend the aircraft serial Nos. affected.