COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Auster/Beagle A.61 Series Aeroplanes AD/AUS/15 Elevator Trimmer Guide Tubes 9/59 Applicability: Models J1, J1B, J1N, J2, J4, J5, J5B, J5P. Requirement: Action in accordance with Auster Mod. No. 3285 or Auster SB No. 41. Compliance: Forthwith.