Document ID: chunk:federal_register_of_legislation:F2006B02478:body:0
Version: federal_register_of_legislation:F2006B02478
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 Eurocopter AS 355 (Twin Ecureuil) Series Helicopters

AD/AS 355/23 Hydraulic System 12/86 DM

 Applicability: All model AS 355 E, F, F1 and F2 helicopters.

 Requirement: Action in accordance with Aerospatiale AS 355 Service Bulletin No. 29-01.

            Note: French AD 86-150-30(B) refers.

            Compliance: Within 300 hours time in service after 30 November 1986 or before 31 January 1987 whichever occurs first.

            For spares: before installation in an aircraft after 30 November 1986.

            Background:  A spring spacer is fitted to prevent an overpressure in the hydraulic systems if the flange of the regulator valve stem, fitted to the filter unit, should come off.