COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Mitsubishi MU-2 Series Aeroplanes AD/MU-2/25 Amdt 2 Flap Control System Torque Tube Assembly Joint 10/90 Applicability: All models. Requirement: Action in accordance with Mitsubishi SB No 189A or SB No 067/27-008 as applicable by serial number. Note: Japan Civil Aviation Bureau AD No TCD-2252-1-87 refers. Compliance: Initially inspect prior to exceeding 4000 hours component time in service or within 100 hours component time in service after 1 November 1990, whichever occurs later. Repeat the inspections at intervals not exceeding 100 hours component time in service. Note: Modification in accordance with the applicable Requirement document constitutes terminating action for this Directive. Background: Amendment 1 extended the repeat inspection requirements, and introduced a new terminating action for the inspections. Amendment 2 introduces SB 067/27-008 which extends the inspection requirements to include all remaining serial numbers, and includes terminating action acceptable for those serial numbers.