Unit of competency Outline
Date retreived
22/07/2026 10:56 AM AWST
22/07/2026 10:56 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.
Disassemble aircraft piston engines
Disassemble aircraft piston engines
Unit of competency
National Code
MEA392A
MEA392A
State Code
WG860
WG860
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
14/11/2013
Field of Education
031503 - Aircraft Maintenance Engineering
Original Release Date
14/11/2013
Nominal Hours
35
Description
This unit of competency is part of the Mechanical Certificate IV (Component Workshop Maintenance Stream) training pathway. It covers the competencies required to disassemble aircraft piston engines during repair and/or overhaul. The unit is used in workplaces that operate under the airworthiness regulatory systems of the Australian Defence Force (ADF) and the Civil Aviation Safety Authority (CASA).
Notes
Elements and Performance Criteria
1 Determine requirements
- 1.1 Engine defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers
- 1.2 Piston engine is inspected in accordance with maintenance publications to establish serviceability state and confirm defects, if necessary
- 1.3 Piston engine build status is determined and quick engine change (QEC) components are recorded in accordance with standard enterprise procedures
- 1.4 Modification status and engine operating hours are clearly established from the engine log book to assist in determining the repair or overhaul requirements for the engine
- 1.5 Extent of overhaul or repair is identified and documented in accordance with standard enterprise procedures
2 Disassemble piston engine
- 2.1 Where applicable, QEC components are removed from the engine, maintenance requirements are determined, and necessary documentation is raised and packaged with the components
- 2.2 Any removed QEC components not requiring maintenance are correctly labelled and stored for reinstallation
- 2.3 Engine is installed in work stand and engine is cleaned
- 2.4 Engine is disassembled in accordance with maintenance publication and/or enterprise procedures
- 2.5 Removed components are cleaned, tagged and inspected for seviceability in accordance with enterprise procedures
- 2.6 Components that are not to be reinstalled are disposed of in accordance with enterprise procedures and action is initiated to obtain replacement components
- 2.7 Components to be re-fitted are processed for detailed inspection, repair/overhaul and/or modification, as required
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. 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.
Piston engine
Piston engines may include the engine assembly and components that comprise a quick engine change unit. Engine types include all cylinder arrangements and fuel types (aviation gasoline, two stroke or diesel)
Application
Application of this unit may relate to:
scheduled or unscheduled maintenance
individual or team-related activities
Procedures and requirements
Procedures and requirements refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise
Piston engine
Piston engines may include the engine assembly and components that comprise a quick engine change unit. Engine types include all cylinder arrangements and fuel types (aviation gasoline, two stroke or diesel)
Application
Application of this unit may relate to:
scheduled or unscheduled maintenance
individual or team-related activities
Procedures and requirements
Procedures and requirements refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise
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 disassemble piston engines while applying all relevant safety precautions.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Evidence of transferability of skills and knowledge related to repair and overhaul is essential. This may be demonstrated through application across a number of different piston engines. Ability to assess component 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. 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 a representative range of the engine types maintained by the enterprise. 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
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 disassemble piston engines while applying all relevant safety precautions.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Evidence of transferability of skills and knowledge related to repair and overhaul is essential. This may be demonstrated through application across a number of different piston engines. Ability to assess component 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. 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 a representative range of the engine types maintained by the enterprise. 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
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| AUE39 | MEA392 | Disassemble aircraft piston engines | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| D744 | MEA40711 | Certificate IV in Aeroskills (Mechanical) | Qualification |