COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Airbus Industrie A319, A320 and A321 Series Aeroplanes AD/A320/51 Main Landing Gear Rear Pintle Pin 5/95 Applicability: A320 S/N 002 to 008, 010 to 014 and 016 to 021. Requirement: Replace the rear pintle pin in the main landing gear in accordance with Airbus Industrie Service Bulletin A320-32-1024. Note: DGAC AD 94-240-061(B) refers. Compliance: Before 20000 landings or during the next main landing gear overhaul, whichever occurs first. Background: Three cracked pins have been found on the fatigue specimen. To improve the fatigue performance, A320-100 pins are replaced by A320-200 pins on aircraft in service.