AD/G1159/50 - Water Drain/Supply Valves (Cth)

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/G1159/50 Water Drain/Supply Valves 9/2007 DM

Applicability: Gulfstream Model GIV-X, GV, and GV-SP series aeroplanes, as identified in the alert customer bulletins specified in Table 1 of this AD.

Table 1. - Gulfstream Alert Customer Bulletins Aeroplane Model Alert Customer Bulletin Date GIV-X G350 Number 5 11 April, 2007 G450 Number 5 11 April, 2007 GV GV Number 26 11 April, 2007 GV-SP G500 Number 7 11 April, 2007 G550 Number 7 11 April, 2007

Requirement: 1. Revise the Normal Procedures section of the AFMs to include the information in the applicable AFM supplement identified in Table 2 of this AD. This may be done by inserting a copy of the supplement into the AFM.

Table 2. - AFM Supplements Aeroplane Model AFM Supplement Date GIV-X G350-2007-01 12 April, 2007 G450-2007-02 12 April, 2007 GV GV-2007-04 12 April, 2007 GV-SP G500-2007-03 12 April, 2007 G550-2007-05 12 April, 2007