Unit of competency Outline
Date retreived
23/07/2026 5:11 AM AWST
23/07/2026 5:11 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.
Repair and/or overhaul aircraft piston engine cylinder assembly components
Repair and/or overhaul aircraft piston engine cylinder assembly components
Unit of competency
National Code
MEA393A
MEA393A
State Code
WG861
WG861
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 overhaul and repair aircraft piston engine components. 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 Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers
- 1.2 Cylinder assembly components are inspected and/or operated through prescribed test procedures to establish serviceability and confirm defects, if necessary
- 1.3 Modification status is clearly established to assist in determining the overhaul requirements for the components
- 1.4 Extent of overhaul or repair is identified and documented in accordance with standard enterprise procedures
2 Dismantle and inspect piston engine cylinder assembly components/parts
- 2.1 Cylinder assembly component parts are dismantled in accordance with maintenance manual and/or enterprise procedures
- 2.2 Component parts are assessed for serviceability in accordance with the relevant maintenance documentation
- 2.3 Parts requiring specialist repair are tagged and repair instructions are specified in accordance with standard enterprise procedures
- 2.4 Parts requiring non-destructive testing are prepared for testing in accordance with the relevant maintenance documentation
- 2.5 Parts lists are compiled and processed in accordance with standard enterprise procedures
3 Repair and/or modify piston engine cylinder assembly components or parts
- 3.1 Component parts are repaired or replaced in accordance with the relevant maintenance documentation
- 3.2 Modification of components is undertaken where required by reference to relevant manufacturer bulletins or procedures, regulatory requirements and/or customer requirements
4 Assemble, test and adjust piston engine cylinder assembly components
- 4.1 Cylinder assembly component parts are assembled within specified tolerances and in accordance with the appropriate maintenance documents
- 4.2 Components are tested and adjusted to operate within prescribed specifications
- 4.3 Cylinder assemblies are prepared for engine reassembly
- 4.4 Where components are not to be assembled into an engine the finished components are tagged, sealed and packaged in accordance with standard enterprise procedures
- 4.5 Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures
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.
Note
Range statements listed below are numbered to facilitate specification of the assessment requirements included in the Evidence Guide
Piston engine cylinder assembly components
Piston engine cylinder assembly components may include:
Cylinder
Piston and piston rings
Piston pins
Valves, valve rockers, valve guides, tappets, pushrods and guard tubes
Manifold studs
Application
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
Note
Range statements listed below are numbered to facilitate specification of the assessment requirements included in the Evidence Guide
Piston engine cylinder assembly components
Piston engine cylinder assembly components may include:
Cylinder
Piston and piston rings
Piston pins
Valves, valve rockers, valve guides, tappets, pushrods and guard tubes
Manifold studs
Application
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
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 piston engine cylinder assembly components 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 is essential. This may be demonstrated through application across a number of different piston engine cylinder assembly components. 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 cylinder assembly 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 1 to 5 in the Range Statement. 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 repair and overhaul aircraft piston engine cylinder assembly components 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 is essential. This may be demonstrated through application across a number of different piston engine cylinder assembly components. 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 cylinder assembly 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 1 to 5 in the Range Statement. 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 |
|---|---|---|---|
| AUE74 | MEA393 | Repair and/or overhaul aircraft piston engine cylinder assembly components | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| D744 | MEA40711 | Certificate IV in Aeroskills (Mechanical) | Qualification |