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 39.001(1) of CASR 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. Dassault Aviation Falcon 2000 Series Aeroplanes AD/F2000/20 Landing Gear Components 10/2006 Applicability: Falcon 2000 aircraft, serial numbers 223 and 224. Falcon 2000EX aircraft, serial numbers 63 through 72. Requirement: Action in accordance with EASA AD 2006-0113. Note: Dassault Aviation Service Bulletins F2000-339 original issue, and F2000EX-106 original issue, or later EASA approved revision, refer. Compliance: As specified in the Requirement document, with a revised effective date of 28 September 2006. This Airworthiness Directive becomes effective on 28 September 2006. Background: A batch of landing gear structural components has been reported to have inadequate corrosion protection. Corrosion could occur before the scheduled inspection time, as recommended and defined in the aircraft maintenance manuals. Such corrosion, unless detected and corrected, could compromise the structural integrity of the landing gear, and lead to landing gear collapse and loss of control of the aircraft. David Villiers Delegate of the Civil Aviation Safety Authority 17 August 2006