COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Robin Aviation Series Aeroplanes AD/ROBIN/14 Fuel Tank Selector Valve 7/92 DM Applicability: All ATL and ATL"S" Series Robin aircraft. Requirement: Action in accordance with the technical requirements of DGAC AD 88-050(A) dated 30 March 1988. Note: Robin SA Service Bulletin No 5 refers. Compliance: By 22 May 1992. Thereafter, reinspect at intervals not exceeding 50 hours time in service. Background: The manufacturer reports that due to an operational incident a repetitive inspection of the fuel selector valve is required.