AD/DAUPHIN/72 Amdt 1 - Hydraulic Power - Hydraulic Pipes Clamps (Cth)

AIRWORTHINESS DIRECTIVE On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DAUPHIN/72 and issues the following 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.

Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters AD/DAUPHIN/72 Amdt 1 Hydraulic Power - Hydraulic Pipes Clamps 4/2006

Applicability: Eurocopter Model SA 365 N and N1, AS 365 N2 and N3 helicopters, not modified per Mod 0729B67. Requirement: AS 365 N2 and N3 model helicopters delivered after 01 January 1998:

1. Replace attachment clamps in accordance with paragraph 2.B.4. of Eurocopter Alert Service Bulletin (ASB) No. 29.00.08 dated 15 November 2005 or later revisions approved by the French DGAC (installation of compliant attachment clamps).

2. Do not install clamps with silicone protection on hydraulic pipes.

AS 365 N2 and N3 model helicopters, delivered prior to 01 January 1998; and SA 365 N and N1 model helicopters:

3. Inspect the attachment clamps of the left hand (LH) hydraulic power system and carry out corrective action, if required, in accordance with paragraph 2.B.5 (Checking the attachment clamps of the LH hydraulic power system ) of ASB No. 29.00.08 or later revisions approved by the French DGAC.