Unit of competency Outline
Date retreived
22/07/2026 7:10 AM AWST
22/07/2026 7:10 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 piston engine aircraft pressurisation systems
Maintain light piston engine aircraft pressurisation systems
Unit of competency
National Code
MEA356
MEA356
State Code
AUE82
AUE82
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
22/07/2015
Field of Education
031503 - Aircraft Maintenance Engineering
Original Release Date
22/07/2015
Nominal Hours
70
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 piston engine aircraft pressurisation systems during the performance of scheduled or unscheduled maintenance. Maintenance may be performed individually or as part of a team.Applications include all types of light fixed wing piston engine aircraft that have cabin pressurisation systems. Where aircraft types have pressurisation and air cycle air conditioning systems the applicable units are MEA208 Remove and install aircraft pressurisation control system components, MEA219 Inspect, test and troubleshoot aircraft pressurisation control systems and components, 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 piston engine aircraft pressurisation 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 Pressurisation 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 piston engine aircraft pressurisation 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 Pressurisation 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 piston engine aircraft pressurisation 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 Pressurisation 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 piston engine aircraft pressurisation 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 Pressurisation 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 |
|---|---|---|---|
| D4468 | MEA356A | Maintain light piston engine aircraft pressurisation systems | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OAD12 | MEA3000 | Maintain small piston engine aircraft pressurisation systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| AVP4 | MEA30215 | Certificate III in Aeroskills (Mechatronics) | Qualification |
| AVN4 | MEA41015 | Certificate IV in Aeroskills (Mechatronics) | Qualification |