Document ID: chunk:federal_register_of_legislation:F2008L04568:body:0:p1
Version: federal_register_of_legislation:F2008L04568
Segment Type: other
Provision Reference: 
Character Range: 0–3198

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/4 Amdt 10 and issues the following AD under subregulation 39.001(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/4 Amdt 11  Piston Engine Continuing    1/2009
                  Airworthiness Requirements

Applicability:  Piston engines and those components necessary for the operation of the engine, installed in aeroplanes maintained in accordance with Civil Aviation Regulation CAR 42B CASA Maintenance Schedule.

                This Airworthiness Directive (AD) is not applicable to compression-ignition piston engines using diesel, jet A-1, Avtur, aviation kerosene or similar fuels.
Requirement:       1. For aircraft in Private operations and / or Aerial Work operations:

                   To ensure the continuing airworthiness of the engine, and those components necessary for the operation of the engine, in addition to the requirements of Schedule 5 of the Civil Aviation Regulations; carry out the maintenance actions detailed in Appendix A of this Airworthiness Directive (AD).

                   2. For aircraft in Charter operations:

                   To ensure the continuing airworthiness of the engine, and those components necessary for the operation of the engine, in addition to the requirements of Schedule 5 of the Civil Aviation Regulations:

                     a. Carry out the maintenance actions detailed in Appendix A of this AD; and

                     b. Overhaul the engine; and

                     c. Overhaul or replace those components necessary for the operation of the engine.

                Definitions:

                For the purpose of this AD, following definitions apply:

                Aerial Work operations:  Operations as detailed in Civil Aviation Regulation CAR 206 (1) (a).

                Airworthy:  Airworthy is defined as when an aircraft, including its component parts, meets its type design or properly altered condition (e.g.; the engine incorporates an STC or a CAR 35 approved modification), and it is in a condition for safe operation.
                Bulk strip:  For the purpose of this AD, a bulk strip is defined as the partial disassembly of the engine for the purpose of inspection or repair; the extent of which requires the separation of the crankcase parting flange or removal of the crankshaft.

                For the purpose of this AD, a bulk strip of an engine shall be carried out by an organisation approved for the purpose and in accordance with approved data.  CASA Airworthiness Bulletin (AWB) 85-005 elaborates on elements of an