COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES British Aerospace BAe 125 Series Aeroplanes AD/HS 125/43 Emergency Brake Valve Knife Edges - Inspection and Replacement 4/76 This AD contents has been removed from the listing because the aircraft model is not currently on the register.