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-600/13 Low Fuel Warning Light - Modification 4/78 Applicability: All models to S/No. 0474. Document: 1. Ted Smith SB No. SB600-71; or 2. FAA AD 77-26-04; or 3. FAA AD 79-01-05. Compliance: Within 100 hours time in service after 30 April 1978.