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. Gulfstream (Grumman) G1159 and G-IV Series Aeroplanes AD/G1159/46 State of Design Airworthiness Directives 8/2007 DM Applicability: Gulfstream GIV-X, GV and GV-SP series aeroplanes, as identified in the individual United States Federal Aviation Administration (FAA) Airworthiness Directives (AD) listed in Table 1. Requirement: 1. Determine the applicability of the FAA ADs listed in Table 1. 2. If it is determined that an AD listed in Table 1 is applicable and has not been previously accomplished, perform the actions required by that AD. Table 1 FAA AD Effective Date Title 98-09-01 5 May 1998 Roll Axis Hardover Prevention System 98-18-15 18 September 1998 Wiring Harness Clearance 2001-21-06 6 November 2006 Fire Extinguisher Bottles 2002-21-03 21 October 2002 Pilot's Overhead Circuit Breaker Panel 2003-18-11 26 September 2003 Left and right Ailerons 2004-02-01 6 February 2004 Landing Gear Selector Dump Valve 2004-22-16 91 November 2004 Crew Oxygen Bottles Note: Copies of FAA ADs may be accessed via the internet at the following URL: http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/MainFrame?OpenFrameSet Compliance: For Requirements 1 and 2 - Within 30 days after the effective date of this Directive or prior to the issue of a Certificate of Airworthiness, whichever occurs later. This Airworthiness Directive becomes effective on 13 July 2007. Background: The FAA ADs listed in Table 1 of this Directive require one time actions for which the compliance date and/or period has passed. CASA has determined that these ADs may be applicable to recently registered or imported Australian aircraft. This Directive is issued to ensure all State of Design ADs are complied with. CASA appreciates that, due to date of aircraft manufacture or aircraft configuration and modification status, not all the ADs listed in Table 1 will be applicable to all GIV-X, GV and GV-SP series aeroplanes. David Punshon Delegate of the Civil Aviation Safety Authority 21 June 2007