COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Israel Aircraft Industries 1123 and 1124 (Westwind) Series Aeroplanes AD/IAI-W/2 Aileron Control Pulley P/N 3533032-1 - Inspection 11/80 Applicability: All model 1124 with S/Nos. 240 to 275. Document: IAI SB No. 1124-27-02. Compliance: Within 150 hours time in service after 30 November 1980. Background: The control pulleys at the base of the control column may be chafed by the cables which could cause abnormal wear to the pulleys.