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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

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
   • Turbine and exhaust section components are inspected and/or operated through prescribed test procedures to establish serviceability and confirm defects, if necessary
   • 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 turbine and exhaust section 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
   • Turbine and exhaust section 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 turbine and exhaust section component parts
   • Turbine and exhaust section component parts are dismantled in accordance with maintenance manual
   • 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 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 turbine and exhaust section components or parts
   • Component parts are repaired or replaced in accordance with the relevant maintenance documentation
   • Modification of components is undertaken, where required, by reference to relevant manufacturers' bulletins or procedures and/or customer requirements
5. Assemble and adjust turbine and exhaust section components
   • Turbine and exhaust section component parts are balanced where required and assembled within specified tolerances and in accordance with the appropriate maintenance documents
   • Support/safety equipment, where fitted, is removed at the appropriate time
   • Components are adjusted to ensure that fits and clearances are 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

Required Skills

Required skills

Look for evidence that confirms skills in applying relevant OHS procedures including the use of MSDS and PPE using relevant maintenance documentation specifications and aircraftcomponent manuals to recognise state of serviceability and overhaul or repair requirements for turbine and exhaust section components test and accurately and efficiently troubleshoot turbine and exhaust section component unserviceabilities and document the causes dismantle and inspect turbine and exhaust section component parts for serviceability and identify repair requirements as applicable repairreplacemodify turbine and exhaust section component parts assemble and adjust turbine and exhaust section components correctly tagging sealing and packaging completed components

Required knowledge

Look for evidence that confirms knowledge of how to obtain relevant MSDS the use of applicable items of PPE fault diagnosis techniques turbine and exhaust section and component operation repair and overhaul procedures and processes including inspection rework repair and reclamation assembly balancing of rotating assemblies and final adjustment

Evidence Required

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package
Overview of assessment	A person who demonstrates competency in this unit must be able to apply hand skills and component theory knowledge and use maintenance publications to repair and overhaul aircraft gas turbine engine and engine module turbine and exhaust section components while applying all relevant safety precautions
Critical aspects for assessment and evidence required to demonstrate competency in this unit	The underlying skills inherent in this unit should be transferable across a range of repair andor overhaul applications associated with gas turbine engine components andor modules It is essential that the maintenance procedures including the use of correct fuels and lubricants are interpreted and applied to ensure quality and safety standards are achieved Evidence of transferability of skills and knowledge related to repair is essential This may be demonstrated through application across a number of different gas turbine engine components andor modules Ability to assess componentmodule serviceability and interpret parts requirements will be necessary to supplement the required evidence Capability to interpret inspection procedures and specifications allowable limits and apply them in practice is critical The application of testing procedures should also clearly indicate knowledge of system operation Knowledge of system operation and the relationship of individual components will be necessary to supplement evidence of ability to troubleshoot component faults before undertaking any action The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements of the unit of competency are being achieved under routine supervision on at least one item from each of Groups to listed in the Range Statement Groups and may be omitted where they are not applicable to the enterprise including demonstration of the repair processes listed in Groups to This shall be established via the records in the Log of Industrial Experience and Achievement or where appropriate an equivalent Industry Evidence Guide
Context of and specific resources for assessment	Competency should be assessed in the work environment or simulated work environment using tools and equipment specified in maintenance documentation It is also expected that general purpose tools and test equipment found in most routine situations would be used where appropriate
Method of assessment
Guidance information for assessment

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Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Note	Range statements listed below are numbered to facilitate specification of the assessment requirements included in the Evidence Guide
Turbine and exhaust section components	Turbine and exhaust section components from fixed or rotary wing gas turbine engine (turbo-jet, turbofan, turboshaft, turboprop), engine module or auxiliary power unit and may include: 1. High and low pressure turbine assemblies 2. Free turbine (where applicable) 3. Automatic turbine rotor clearance control system (where applicable) 4. Engine tail cone and exhaust struts 5. Jet pipe that is part of the engine change unit or module 6. Thrust reversers (where applicable) 7. Afterburner system where it is part of the engine change unit or module (where applicable)
Repair of component parts	Repair of component parts may include: 8. Finishing or re-finishing of metal surfaces through processes, such as polishing and lapping 9. Removal of corrosion within maintenance manual limits 10. Replacement of seals and gaskets 11. Replacement of bearings
	Application of this unit may relate to: scheduled or unscheduled maintenance individual or team-related activities complex testing and adjusting of components, and where this is undertaken, may be carried out under supervision at the appropriate level
Procedures and requirements	Procedures and requirements refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

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