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Elements and Performance Criteria

1. Determine requirements
   • Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers
   • Mechanical components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required
   • Modification status is clearly established to assist in determining the overhaul requirements for the components
   • Extent of overhaul or repair is identified and documented in accordance with standard enterprise procedures
2. Troubleshoot mechanical components
   • Available information from maintenance records and test results is used, where necessary, to assist in fault determination
   • Logical processes are used to ensure efficient and accurate troubleshooting
   • Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement
   • Mechanical component faults are located and the causes of the faults are clearly identified
   • Fault rectification requirements are determined to assist in planning the repair
3. Dismantle and inspect mechanical component parts
   • Mechanical component parts are dismantled in accordance with maintenance manuals 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)
   • Component parts are assessed for serviceability in accordance with the relevant maintenance documentation
   • Parts requiring specialist repair are tagged and repair instructions are specified in accordance with standard enterprise procedures
   • Parts requiring non-destructive testing (NDT) are prepared for testing in accordance with the relevant maintenance documentation
   • Parts lists are compiled and processed in accordance with standard enterprise procedures
4. Repair and/or modify mechanical
   • Component parts are repaired or replaced in accordance with the relevant maintenance documentation
   • Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures
5. Assemble, test and adjust mechanical components
   • Mechanical component parts are assembled within specified tolerances and in accordance with the appropriate maintenance documents while observing all relevant WHS requirements, including the use of MSDS and items of PPE
   • Components are adjusted, tested or calibrated to operate within prescribed specifications
   • Finished components are tagged, sealed and packaged in accordance with standard enterprise procedures
   • Required maintenance documentation and modification records are 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.
Mechanical components include:	Gear boxes and transmissions (except for helicopter components which are covered by MEA390 Repair and/or overhaul rotary wing dynamic components) Screwjacks Mechanical actuators Control rods, bellcranks, walking beams and links
Repair of component parts includes:	Finishing or re-finishing of metal surfaces through processes, such as polishing and lapping Removal of corrosion within maintenance manual limits Replacement of seals and gaskets Replacement of bearings Application of surface treatments, such as alodining Restoration of paint finishes
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 relevant WHS procedures

using MSDS and applicable items of PPE

using relevant maintenance documentation and aircraft/component manuals relating to mechanical system components to:

recognise state of serviceability and overhaul or repair requirements

test and accurately and efficiently troubleshoot unserviceabilities and document the causes

dismantle and inspect component parts for serviceability and identify repair requirements as applicable

repair/replace/modify component parts

assemble, test for correct operation and adjust components.

The underlying skills inherent in this unit should be transferable across a range of repair and overhaul applications associated with aircraft mechanical components. It is essential that the relevant procedures are interpreted and applied to ensure quality and safety standards are achieved.

This shall be demonstrated through application across a number of different aircraft components. Ability to assess component serviceability and interpret parts requirements will be necessary before undertaking any action.

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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:

how to obtain relevant MSDS

the correct use of PPE

WHS procedures

fault diagnosis and component part inspection techniques

system and component operation

repair and overhaul procedures and processes.

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