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 AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section. AD/IAI-W/20 Aileron Radiographic Inspection 5/2000 Applicability: Models 1124 and 1124A S/nos 297,304, and 400 to 410 (S/no. 405 RH aileron only). Requirement: Inspect in accordance with IAI Westwind Alert SB 1124-27A-145. Compliance: Within 200 hours time in service after the effective date of this directive. Note: Israel AD No. 57-00-02-06 refers. This Airworthiness Directive becomes effective on 18 May 2000. Background: It has been discovered that some ailerons may have been assembled with insufficient fasteners in the aileron rib to spar connections. Bernard Malcolm Hole Delegate of the Civil Aviation Safety Authority 7 April 2000 The above AD is notified in the Commonwealth of Australia Gazette on 19 April 2000.