Document ID: chunk:federal_register_of_legislation:F2006B09561:body:0:p1
Version: federal_register_of_legislation:F2006B09561
Segment Type: other
Provision Reference: 
Character Range: 20–3325

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/ENG/5 Amdt 8 and issues the following AD under subregulation 39.1 (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.

 Engines - General

AD/ENG/5
 Amdt 9

            Turbine Engine Continuing Airworthiness Requirements

 10/2004

 Applicability: All turbine engines; other than engines installed in:

               1. Aircraft administered by an approved sports aviation body; and

              2.         Aircraft issued with a limited category certificate of airworthiness under regulation 21.189 of the CASR; and

              3.         Aircraft issued with an experimental certificate under regulation 21.195A of the CASR.

 Requirement: 1. OVERHAUL/INSPECTION PERIODS FOR TURBINE ENGINES

              1.1    Turbine engines shall be overhauled or inspected at periods not exceeding:

                 (a)     As specifically detailed in Requirements 1.2, 1.3 and 1.4 of this Directive; or

                 (b)     At the recommended hours in service published by the engine manufacturer; or

                 (c)     As detailed in an approved system of maintenance.

              1.2    Honeywell TPE331 series engines:

                 (a)     Honeywell TPE331 series engines shall be overhauled at periods as listed in, and subject to the requirements of, the appropriate Honeywell Service Bulletins detailing TPE331 series engine time between overhaul (TBO) intervals and requirements. For the purpose of this Directive, annual utilisation, or type of operation, are not requisites to establish a TBO period for Honeywell TPE331-1, -2, -3, -5, -6, -8, -10, -11, -12 series engines; or

                 (b)     Inspected in accordance with, and subject to the requirements of, a Honeywell published Continuous Airworthiness Maintenance Operation (CAM) program applicable to the engine model. For the purpose of this Directive, annual utilisation, or type of operation, are not requisites to establish a TBO period for Honeywell TPE331-1, -2, -3, -5, -6, -8, -10, -11,
                 -12 series engines; or

                 (c)     As detailed in an approved system of maintenance.

              1.3    Pratt and Whitney Canada PT6A series engines other than PT6A engines installed in aircraft conducting aerial agricultural operations or fire fighting operations:

                 (a)     PT6A series engines shall be overhauled at periods as listed in, and subject to the requirements of, the appropriate Pratt and Whitney Canada Service Bulletin detailing Pratt and Whitney Canada PT6A operating time between overhaul and hot section inspection frequency; or

                 (b)     At periods not to exceed 5,000 hours time in service, subject