COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes AD/TSA-600/12 Fuel Crossfeed Placard - Installation 3/78 Applicability: All models with Airframe Sequence Numbers below 0475. Requirement: Install placard P/N TSA 030100-1 on the instrument panel in accordance with Ted Smith Corp. SB No. SB600-70. Compliance: Within 100 hours time in service after 31 March 1978.