COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Dornier DO-27 Series Aeroplanes AD/DO-27/5 Fuel, Oil and Manifold Pressure Flexible Hoses - Replacement Applicability: All model DO-27, A-4, Q-5 and Q-6. Document: Dornier TB No. 27-27. Compliance: Before 1 September 1971. 6/65