COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Consolidated Aeronautics, Colonial and LA-4 Series Aeroplanes AD/LA-4/12 Fuel Pressure Restrictor Fitting - Inspection 6/74 Applicability: All LA-4-200 series up to S/No. 601. Document: 1. Lake Aircraft Division Consolidated Aeronautics SB B51. 2. FAA Directive 74-09-06. Compliance: Within 25 hours time in service after 28 June 1974.