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Airworthiness Directive - ADDHC-847 Amdt 1 - Engine Compartment

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Airworthiness Directive - ADDHC-847 Amdt 1 - Engine Compartment Powered By Docstoc
					COMMONWEALTH OF AUSTRALIA                             (Civil Aviation Regulations 1998), PART 39 - 105
CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES


Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes


AD/DHC-8/47                 Engine Compartment Hydraulic System                               13/98
Amdt 1
Applicability:   All DHC-8 model 100 and 300 series aircraft, serial number 003 through 405.

Requirement:     1. Aircraft within S/N range 003 through 154.

                   Incorporate modification 8/1152 to relocate the parking brake accumulator in
                   accordance with de Havilland SB 8-32-128 Revision B dated 30 August 1996.

                 2. Aircraft within S/N range 003 through 392.

                   Incorporate modification 8/1982 to relocate the parking brake charging valve in
                   accordance with de Havilland SB 8-32-128 Revision B dated 30 August 1996.

                 3. Aircraft within S/N range 003 through 405.

                   Incorporate modification 8/1983 to relocate the No.2 standby power unit in
                   accordance with de Havilland SB 8-29-23 dated 06 December 1996, Or

                   Incorporate modification 8/2781 in accordance with de Havilland SB 8-29-29,
                   dated 27 February 1998 for aircraft where this modification has not been
                   incorporated during manufacture.

                   Upon incorporation of either modification above, the corresponding Aircraft Flight
                   Manual (AFM) revision identified in section D, compliance, of the applicable
                   Service Bulletin must be inserted in the affected aircraft’s AFM.

                 Note: Transport Canada AD CF-96-25R2 refers.

Compliance:      Unless previously accomplished comply with Requirements 1, 2 and 3, as applicable,
                 prior to 15 June 2000.

                 This Airworthiness Directive becomes effective on 3 December 1998.

Background:      The manufacturer has advised that two fuel-fed fires in the engine compartment
                 resulted in fire damage to hydraulic components located in the number 2 engine
                 nacelle. This resulted in total loss of system 1 and 2 hydraulic pressure. Component
                 relocation will ensure hydraulic pressure for rudder operation continues to be
                 maintained.

                 The revision of this AD was introduced to allow alternate compliance with
                 requirement 3 of this AD.

                 The original issue of this Airworthiness Directive became effective on 27 February
                 1997.

				
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