COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Bell Helicopter Textron 212 Series Helicopters AD/BELL 212/57 Hydraulic Servo Actuator Shoulder Bolt 13/95 Applicability: All Bell Helicopter Textron 212 Series Helicopters S/N 30501 through 30999, 31110 through 31311, 32101 through 32142 and 35001 through 35089 which have servos installed that have been overhauled or repaired by a facility not approved by HR Textron. Requirement: Unless previously carried out action in accordance with Bell ASB 212-95-98 Revision A. Compliance: Within 25 hours time in service from 7 December 1995 or by 31 January 1996, whichever occurs first. Background: Bell Textron has advised that unauthorised rework/repair of the shoulder bolts may have been carried out. An inspection of the shoulder bolts for possible unauthorised chrome plating is required.