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. Boeing 737 Series Aeroplanes AD/B737/252 Leading Edge Slat Track Fittings 13/2005 Applicability: Model 737-100, -200, and -200C series aircraft, line numbers 1 through 1585. Requirement: Action in accordance with the technical requirements of FAA AD 2005-20-16 Amdt 39-14310. Note: Boeing Special Attention Service Bulletin 737-57-1273 Revision 2 and Boeing Service Bulletin 737-57-1080 Revision 3, or later FAA approved revisions, refer. Compliance: As specified in the Requirement document, with a revised effective date of 22 December 2005. This Airworthiness Directive becomes effective on 22 December 2005. Background: The FAA received reports of damage to the lugs of certain inboard attach fittings of the leading edge slat tracks. The actions required by this Directive are intended to prevent a lifted slat, which, if the aircraft performs any non-normal manoeuvre during takeoff or landing at very high angles of attack, could lead to the loss of the slat and reduced control of the aircraft. David Villiers Delegate of the Civil Aviation Safety Authority 7 November 2005