COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Robin Aviation Series Aeroplanes AD/ROBIN/16 Ball and Socket Fitting 7/92 Applicability: ATL, all types, and R3000, all types. Requirement: For ATL: Action in accordance with ROBIN SA SB No.8 Rev.1. For R3000: Action in accordance with AVIONS PIERRE ROBIN SB No.121 Rev.1. Note: DGAC AD 91-154(A) refers. Compliance: Unless already accomplished; Prior to further flight after 30 June 1992. Background: The DGAC requires an inspection of the ball and socket fittings. This action is required in order to prevent jamming of certain ball and socket fittings, due to a surface treatment problem during manufacture.