Document ID: chunk:federal_register_of_legislation:F2006B07435:body:0
Version: federal_register_of_legislation:F2006B07435
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series

 AD/TPE 331/26
 Amdt 1

 Installation of Direct Drive Fuel Control 1/92

            Applicability: TSE 331-3 and TPE 331-1, -2, -3, -5 and -6 series engines as listed by model and part number in Garrett Service Bulletin TPE 331-72-0061 Revision 5.

            Requirement: Incorporate the modified engine fuel control drive train in the main reduction gearbox in accordance with FAA AD 78-25-08 Revision 3 Amdt 39-3787. (Garrett SB TPE 331-72-0061 Revision 5 refers).

            Note: Equipment modified in accordance with previous issues of this Directive, or with AD/AIR-T/35 Amdt 3, do not require further rework.

 Compliance: The compliance date of the original issue of this Directive was 31 December 1985.
            This re-issue is effective from 12 January 1992.

            Background: This Directive was originally issued for the purpose of increasing N2 overspeed protection by the incorporation of SB 72-0061 and 72-0232 as a result of FCU drive problems experienced in Australia. Amendment 1 has the effect of aligning the Authority requirements with that of the FAA by removing the mandatory requirement to fit a modified torque sensor.