COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes AD/HS 748/16 Main and Nose Landing Gear Life Limits 5/95 Applicability: All HS 748 aircraft. Requirement: Retire from service nose and main landing gear components and associated equipment listed in Dowty Aerospace Landing Gear Service Bulletin (SB) 32-104E. Compliance: Retire at the times specified in Dowty Aerospace Landing Gear SB 32-104E Tables 1 to 7 inclusive. Background: The results of extensive fatigue testing indicate that a number of Structurally Significant Items on the main and nose landing gears are life limited and consequently a retirement life is specified.