COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Teledyne Continental Motors Piston Engines AD/CON/64 Induction Elbow 13/92 Applicability: All TSIO-520-J and N series engines fitted with a P/N 629138 intake elbow tube. Requirement: Inspect and assemble P/N 635930 flexible intake elbows in accordance with Continental Aircraft Engine Service Bulletin M78-5 Rev.3. Note: FAA Airworthiness Directive 78-06-01 refers. Compliance: Effective 10 December 1992: At intervals not to exceed 110 hours time in service. Background: The requirements of AD/CON/35A have been reissued following review of all Continental Piston Engine Directives. The requirements of FAA Airworthiness Directive 78-06-01 are still effective and appropriate.