AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DAUPHIN/64 and issues the following AD under subregulation 39.1 (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. Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters AD/DAUPHIN/64 Amdt 1 Fuel - Air Vent Hoses 13/2004 Applicability: AS 365 helicopters versions N, N1, N2 and N3 post-modification 0753B31 "Reinforced Latch Support at the 9° Frame". Requirement: 1. Inspect for condition of the air vent hoses, and the latch support attachment screws for correct length in accordance with Eurocopter AS 365 N Alert Service Bulleting (ASB) No 28.00.31. 2. Carry out rectification of any defects found during the inspection as listed in requirement 1, in accordance with Eurocopter ASB No. 28.00.31. Note 1: DGAC Airworthiness Directive F-2003-028 R1 as approved by EASA reference number 2004-8604 dated 10 August 2004 refers. Compliance: 1. Unless accomplished earlier, within 50 flight hours or within one month from the effective date of this directive, whichever occurs first. 2. Prior to further flight. This Amendment becomes effective on 23 December 2004. Background: The current issue of this Airworthiness Directive refers to the ASB 28.00.31 and clarifies the effectivity list that now covers post-modification 0753B31 helicopters only. Note 2: Modification 0753B31 "Reinforced Latch Support at the 9°Frame" is also the subject of Service Bulletin (SB) No. 53.20 that was cancelled by complying with Eurocopter ASB No. 53.00.42 "Check of the Holes of the Reinforced Latch Support on the 9° Frame" and SB No. 53.00.44 The original issue of this Airworthiness Directive required inspection as per provisions of Eurocopter Alert Telex No. 28.00.31, addressing the safety risk associated with the fuel leak. The reported leak was due to the interference between air vent hose and the attachment screws of the latch support of right hand front door. Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters AD/DAUPHIN/64 Amdt 1 (continued) Alert Telex 28.00.31 was later converted to Eurocopter AS 365 N ASB 28.00.31 with no change in the technical content. The original issue of this airworthiness directive became effective on 17 April 2003. James Coyne Delegate of the Civil Aviation Safety Authority 9 November 2004 The above AD is notified in the Commonwealth of Australia Gazette on 1 December 2004.