Unit of competency Outline

Date retreived
22/07/2026 7:31 AM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Maintain light aircraft air cycle air conditioning systems

Maintain light aircraft air cycle air conditioning systems

Unit of competency
National Code
MEA355
State Code
AUF18
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
12/02/2015
View on TGA
State Implementation and Classification
Approved Date
22/07/2015
Field of Education
031503 - Aircraft Maintenance Engineering
Original Release Date
22/07/2015
Nominal Hours
50
Description
This unit of competency requires application of hand skills and the use of system/component knowledge and applicable maintenance publications and test equipment to inspect, test, troubleshoot and replace components of light aircraft air cycle air conditioning systems during the performance of scheduled or unscheduled maintenance. Maintenance may be performed individually or as part of a team.Applications include unpressurised gas turbine engine-powered fixed and rotary wing light aircraft that have air cycle air conditioning systems. Where the aircraft has a pressurisation system the air conditioning and pressurisation systems are covered by MEA303 Remove and install aircraft pneumatic system components and MEA310 Inspect, test and troubleshoot aircraft pneumatic systems and components.The unit is part of the Mechanical Certificate IV (Aircraft Maintenance Stream) training pathway. Where a Civil Aviation Safety Authority (CASA) licensing outcome is sought this unit forms part of the CASA requirement for the granting of the chosen maintenance certification licence under Civil Aviation Safety Regulation (CASR) Part 66, in accordance with the licensing provisions in the Companion Volume Implementation Guide.
Notes
Elements and Performance Criteria
1. Inspect light aircraft air cycle air conditioning system
  • 1.1 Relevant maintenance documentation and modification status, including system defect reports, where relevant, are used to identify specific inspection requirements
  • 1.2 Isolation tags are checked and aircraft configured for safe system inspection and operation in accordance with the applicable maintenance manual
  • 1.3 Air cycle air conditioning system components are visually or physically checked for external signs of defects in accordance with 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)
  • 1.4 Defects are correctly identified and reported
2. Test/adjust light aircraft air conditioning systems and components
  • 2.1 Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation
  • 2.2 Air cycle air conditioning system is functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction
  • 2.3 System adjustment is performed in accordance with maintenance manual
3. Troubleshoot light aircraft air cycle air conditioning systems
  • 3.1 Available information from maintenance documentation, inspection and test results is used, where necessary, to assist in fault determination
  • 3.2 Maintenance manual fault diagnosis guides and logic processes are used to ensure efficient and accurate troubleshooting to line replacement level
  • 3.3 Specialist advice is obtained, where required, to assist with the troubleshooting process
  • 3.4 Air cycle air conditioning system faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, in accordance with standard enterprise procedures
  • 3.5 Rectification requirements are determined
4. Remove and install light aircraft air cycle air conditioning system components
  • 4.1 System is rendered safe in accordance with the applicable maintenance manual and isolation tags are fitted, where necessary, to ensure personnel safety
  • 4.2 Air cycle air conditioning system component 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
  • 4.3 Required maintenance documentation is accurately completed and correctly processed
  • 4.4 Removed components are tagged, sealed and packaged in accordance with specified procedures
  • 4.5 Components to be installed are checked to confirm correct part numbers, serviceability and modification status
  • 4.6 Installation is carried out in accordance with the applicable maintenance manual
  • 4.7 Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
No information
No information
Replaces
State Code National Code Title Type
D4467 MEA355A Maintain light aircraft air cycle air conditioning systems Unit of competency
Replaced By
State Code National Code Title Type
OEH97 MEAMEC0044 Maintain light aircraft air cycle air conditioning systems Unit of competency