MEAMEC0077 — Maintain aircraft vapour cycle air conditioning systems
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What an assessment for MEAMEC0077 must cover
68 assessable components: 5 elements (18 performance criteria), 17 performance evidence and 30 knowledge evidence requirements, plus 3 foundation skills. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.
Elements & performance criteria
1 Inspect vapour cycle air conditioning systems
- 1.1Check isolation tags already attached to the system or related systems and configure aircraft/engine for safe system inspection and operation in accordance with applicable maintenance manual
- 1.2Check vapour cycle air conditioning systems for external and internal signs of defects in accordance with applicable maintenance manual while observing all relevant work health and safety (WHS) requirements, including the use of safety data sheets (SDS) and items of personal protective equipment (PPE)
2 Test vapour cycle air conditioning systems
- 2.1Prepare aircraft and system in accordance with applicable maintenance manual
- 2.2Test vapour cycle air conditioning system in accordance with prescribed test procedures to establish serviceability and correct function in accordance with applicable maintenance manual
3 Troubleshoot vapour cycle air conditioning systems
- 3.1Use available information from maintenance documentation and inspection and test results to assist in fault determination
- 3.2Use maintenance manual fault diagnosis guide and logical processes to ensure efficient and accurate troubleshooting to line replacement level
- 3.3Locate vapour cycle air conditioning system faults and identify and record the causes of the faults in maintenance documentation
- 3.4Determine fault rectification requirements to assist in planning the repair
4 Remove vapour cycle air conditioning system components
- 4.1Render aircraft and vapour cycle air conditioning system safe, including fitting of isolation tags where required, in accordance with applicable maintenance manual, to ensure safety of personnel prior to removal of any components
- 4.2Perform refrigerant evacuation in accordance with regulatory requirements and maintenance manual procedures
- 4.3Carry out component removal in accordance with the applicable maintenance manual while observing all relevant WHS requirements, including the use of SDS and items of PPE
- 4.4Tag and prepare components for transport or storage in accordance with the specified procedures
- 4.5Complete and process required maintenance documentation in accordance with standard enterprise procedures
5 Install vapour cycle air conditioning system components
- 5.1Check components to be installed to confirm correct part or model numbers, modification status and serviceability
- 5.2Carry out installation in accordance with the applicable maintenance manual while observing all relevant WHS requirements, including the use of SDS and items of PPE
- 5.3Recharge vapour cycle air conditioning system with refrigerant, in accordance with regulatory requirements and maintenance manual procedures
- 5.4Test vapour cycle air conditioning system for correct function and freedom from refrigerant leaks
- 5.5Complete and process required maintenance documentation in accordance with standard enterprise procedures
Performance evidence
- maintain aircraft vapour cycle air conditioning systems on at least one (1) component in at least four (4) of the following groups:
- refrigeration system compressor, condenser, receiver dryer, thermal expansion valve and evaporator
- magnetic clutch and drive system (belt, power takeoff, electric motor, hydraulic motor or pneumatic as applicable)
- condenser extension and retraction system
- blower
- throttle system shutoff
- temperature control system
- During the above work, demonstrate the following:
- apply relevant WHS procedures, including the selection and use of applicable safety data sheets (SDS) and items of personal protective equipment (PPE)
- comply with regulatory requirements regarding the de-gassing of vapour cycle air conditioning systems
- use relevant maintenance documentation and aircraft manual
- recognise external and internal signs of defects in vapour cycle air conditioning systems and system components through visual or physical inspection
- test vapour cycle air conditioning system operation, be able to operate systems and leak testing equipment, monitor indications and recognise correct function
- use specialist equipment to evacuate and recharge refrigerant
- use fault diagnosis guides and equivalent data to accurately and efficiently troubleshoot the causes of unserviceabilities in vapour cycle air conditioning systems, clearly recording details and identifying the required rectification actions
- correctly remove and install vapour cycle air conditioning system electrical and mechanical components.
- The underlying skills inherent in this unit should be transferable across a range of inspection, testing, troubleshooting and removal and installation tasks (including the timely involvement of supervisor or other trades) associated with vapour cycle air conditioning systems and components. It is essential that system testing procedures take into account all safety precautions associated with vapour cycle air conditioning system operation and testing, and that regulations relating to the evacuation and recharging of refrigerant be strictly observed. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice is critical.
Knowledge evidence
- WHS procedures associated with vapour cycle air conditioning system maintenance, including the selection and use of PPE
- how to obtain applicable SDS
- regulations applying to the evacuation and recharging of refrigerant
- fault diagnosis techniques
- vapour cycle air conditioning system layout and operation
- vapour cycle air conditioning system electrical and mechanical component operation:
- compressor
- condenser
- receiver dryer
- thermal expansion valve
- evaporator
- magnetic clutch and drive system:
- belt
- power takeoff
- electric motor
- hydraulic motor
- pneumatic
- condenser extension and retraction system
- blower
- throttle system shutoff
- temperature control system
- refrigerant used in aircraft vapour cycle air conditioning systems
- lubricants used in compressors
- equipment used to test systems and evacuate and recharge refrigerant
- procedures for evacuating and recharging system refrigerant
- refrigerant leak testing techniques and equipment
- removal and installation procedures for vapour cycle air conditioning system components
- vapour cycle air conditioning system maintenance requirements
- relevant maintenance manuals
- relevant regulatory requirements and standard procedures specified by manufacturers, regulatory authorities and the enterprise.
Foundation skills
- Reading: Reading skills to interpret maintenance manuals, inspection procedures and specifications (allowable limits).
- Writing: Writing skills to record and report on defects and faults and their causes.
- Numeracy: Numeracy skills to interpret and communicate technical information including wiring diagrams and take and interpret system measurements.
Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.
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Questions about assessing MEAMEC0077
What does an assessment tool for MEAMEC0077 need to cover?
To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEAMEC0077 needs to address all 68 unit components: 5 elements with 18 performance criteria, 17 performance evidence requirements, 30 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.
How does Auditori generate an assessment tool for MEAMEC0077?
Auditori pulls the current release of MEAMEC0077 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.
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Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of MEAMEC0077, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.
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