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Elements and Performance Criteria

1. Remove engine
   • Aircraft is prepared and supported and rendered safe in accordance with the applicable maintenance manual and isolation tags are fitted, where necessary, to ensure the safety of personnel and freedom from damage during engine removal
   • Removal is carried out in accordance with the applicable maintenance manual while observing all relevant work health and safety (WHS) requirements, including the use of material safety data sheets (MSDS) and items of personal protective equipment (PPE)
   • Engine is tagged and prepared for transport or storage in accordance with the specified procedures
   • Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
2. Remove engine system components
   • Aircraft and/or engine system is prepared and rendered safe in accordance with the applicable maintenance manual and isolation tags are fitted, where necessary, to ensure the safety of personnel
   • Removal is carried out in accordance with the applicable maintenance manual while observing all relevant WHS requirements, including the use of MSDS and items of PPE
   • Engine system component is tagged and prepared for transport or storage in accordance with the specified procedures
   • Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
3. Install engine
   • Engine to be installed is checked to confirm correct part or model numbers, modification status and serviceability
   • Installation is carried out in accordance with the applicable maintenance manual
   • Support/safety equipment is removed at the appropriate time to ensure personnel safety and freedom from structural damage
   • Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
4. Install engine system components
   • Engine components to be installed are checked to confirm correct part or model numbers, modification status and serviceability
   • Installation is carried out in accordance with the applicable maintenance manual while observing all relevant WHS requirements, including the use of MSDS and items of PPE
   • Support/safety equipment is removed at the appropriate time to ensure personnel safety and freedom from structural damage
   • Required maintenance documentation is completed and processed in accordance with standard enterprise procedures

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.
Engines and engine system components include:	Engine change unit or auxiliary power unit (turbo-prop, turbofan, turboshaft, turbojet and piston) Fuel, oil and air system (or induction and super/turbo charger systems in the case of piston engine) components Engine control system components Ignition or igniter system components Starting system components Fire protection system components. Accessories and associated drives
Procedures and requirements include:	Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

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Performance Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

applying WHS practices, including lifting and handling heavy components

using MSDS and PPE

using relevant maintenance documentation and aircraft manuals to:

correctly remove and install engines, engine change units and auxiliary power units (APUs)

prepare removed engines for transportation and/or storage

locate and correctly remove and install the range of engine system components listed in the Range of Conditions

identifying the requirement for adjustment and rigging of systems and controls after the installation of engines or system components.

It is essential that safety precautions applicable to engines and engine systems being maintained are fully observed, understood and complied with, including allowance for the effect on aircraft centre of gravity when engines are removed. Awareness must be demonstrated of dual inspection requirements associated with work on engine control systems.

Evidence of transferability of skills and knowledge related to removal and installation is essential. This may be demonstrated through removal and installation of a representative range of engines and engine system components as listed in the Assessment Conditions.

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Knowledge Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

removal and installation procedures for aircraft:

engines

engine change units

APUs

engine inhibiting and de-inhibiting procedures

layout, installation and connection of components of:

fuel systems

lubrication systems

air systems

super and turbo charging systems

exhaust systems

ignition and igniter systems

starting systems

fire protection systems

accessories and associated drives

engine control system component removal and installation, including the requirement for rigging and for the independent inspection of work performed

engine maintenance documentation and manuals

relevant WHS practices, including those relating to the lifting and handling of heavy items

how to obtain MSDS

use of PPE

relevant maintenance manuals

relevant regulatory requirements and standard procedures.

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