COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Short SD3-60 Series Aeroplanes AD/SD3-60/14 Tailplane Attachment Fitting Bushes 1/86 Applicability: All Models. Requirement: Action in accordance with Shorts SB SD360-55-10. Compliance: Prior to 31 March 1986. Background: Interference fit bushes have been found loose in the tailplane attachment fittings.