Document ID: chunk:federal_register_of_legislation:F2006B09309:body:0:p2
Version: federal_register_of_legislation:F2006B09309
Segment Type: other
Provision Reference: 
Character Range: 2998–5791

dye penetrant inspection of the MGB coupling tube in accordance with paragraph 2.B of Eurocopter SB 71.005.

            The inspection detailed in Requirement 1 (a) and Requirement 3 (a) of this directive may be carried out and certified by the pilot provided the pilot has completed an approved training program.

            Note : DGAC Airworthiness Directive F-2003-325 R1 refers.

Compliance: Requirement 1.

                  1. Unless previously accomplished, prior to further flight; and thereafter at intervals not to exceed 5 flight hours from last inspection or following the last flight of the day, whichever occurs first.

b.         Before further flight.

c.         Prior to exceeding 1,000 hours time in service (TIS) for the MGB coupling tube.

Requirement 2.

                 a. Remains unchanged as detailed in Amendment 3 of this Directive, prior to 30 June 2004.

Requirement 3.

                  1. Unless previously accomplished, within 25 flight hours from the effective date of this directive and thereafter at intervals not to exceed 25 flight hours.

b.         Before further flight.

            c.         Prior to exceeding 20,000 hours TIS for the MGB coupling tube. Requirement 4.
              a. Prior to exceeding 20,000 hours TIS for the MGB coupling tube.

            Requirement 5:

                 a. Before fitment to a helicopter modified in accordance with Eurocopter EC120 SB No. 71.005 and where the coupling tube was previously fitted to a helicopter not modified in accordance with Eurocopter EC120 SB No. 71.005.

            This Amendment becomes effective on 2 September 2004.

            Background: This Directive was originally issued to address a report of cracks being found in a reinforced engine to MGB coupling tube assembly. The investigation of that report has determined a certain engine mount configuration may induce excessive loading on the coupling tube. In response, the manufacturer has released an improved engine mount, revised the reinforced coupling tube inspection procedures and revised the life limits for the reinforced coupling tube assembly. This Amendment introduces terminating action of the inspections for helicopters modified by Eurocopter EC120B SB 71.005.

            Amendment 3 of this Airworthiness Directive became effective on 25 December 2003 Amendment 2 of this Airworthiness Directive became effective on 16 May 2002.
            Amendment 1 of this Airworthiness Directive became effective on 15 November 2000.

            The original issue of this Airworthiness Directive became effective on 3 May 2000.

 Bernard Malcolm Hole
 Delegate of the Civil Aviation Safety Authority 23 July 2004

 The above AD is notified in the Commonwealth of Australia Gazette on Gazette Date.