COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Cessna 400 Series Aeroplanes AD/CESSNA 400/42 Main Landing Gear Trunnion - Inspection and Replacement 9/74 Applicability: All models 402B with S/Nos. 0575 to 0632. All models 414 with S/Nos. 0503 to 0543. All models 421B with S/Nos. 0322, 0584 to 0651. Document: Cessna SL No. ME74-14. Compliance: As per requirement document.