COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Grob G115 Series Aeroplanes AD/GROB 115/2 Engine Control Cables and Fuel Shut-Off Valve 12/89 Applicability: All Grob G115 series aircraft, except those already modified as listed in Grob SB TM1078-8. Requirement: Action in accordance with Grob Service Bulletin TM1078-8. Note: LBA AD 89-141 Grob refers. Compliance: Prior to 31 January 1990. Background: To maintain aircraft airworthiness, replacement of the engine control cables and fuel shut-off valve insert is required.