Unit of competency Outline
Date retreived
23/07/2026 8:24 AM AWST
23/07/2026 8:24 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.
Perform advanced troubleshooting in aircraft mechanical maintenance
Perform advanced troubleshooting in aircraft mechanical maintenance
Unit of competency
National Code
MEA323B
MEA323B
State Code
W8422
W8422
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
10/05/2012
Field of Education
031503 - Aircraft Maintenance Engineering
Original Release Date
10/05/2012
Nominal Hours
210
Description
This unit covers competencies required to progress from an Aircraft Maintenance Engineer at Certificate IV to the granting of a chosen B1 Aircraft Maintenance Engineer Licence or Aircraft Maintenance Specialist Certificate under CASR Part 66, in accordance with the licensing provisions in the Assessment Guidelines.The skills and knowledge covered by the units of competency listed in the MEA11 Aeroskills Training Package for Aircraft Maintenance Engineer (Avionics or Mechanical as applicable) at Certificate IV are prerequisite to the attainment of the elements of competency specified in this unit. This includes full coverage of the CASR Part 66 Avionics or Mechanical Syllabus subjects/topics listed in the Assessment Guidelines.
Notes
Elements and Performance Criteria
1. Verify the defect
- 1.1. Available information from flight crew, such as flight phase, aircraft configuration, etc., maintenance documentation both current and previous history, is used as necessary, to assist in fault determination
- 1.2. Inspection of the affected system is carried out to check both physical integrity and correct operation
- 1.3.Information gained from Central Maintenance Systems is verified against physical integrity and correct operation, where applicable
- 1.4.The effects on a system from interfaces/ integration with other systems are taken into account
2. Isolate the defect
- 2.1. Logical processes, including the application of basic principles and system knowledge and known facts are used to augment maintenance manual fault diagnosis guides to ensure efficient and accurate troubleshooting
- 2.2. Specialist advice is obtained, where required and/or available, to assist with the troubleshooting process.
- 2.3. Faults are located and the causes of the defects are clearly identified and correctly recorded in maintenance documentation, including any other system(s) disturbed, where required
3. Determine defect rectification requirements
- 3.1. Defect rectification requirements are determined and the necessary repair action initiated once verification and isolation of the defect are confirmed
4. Verify defect rectification
- 4.1. Defect is rectified in accordance with approved maintenance data
- 4.2. All systems disturbed or accessed during troubleshooting are restored as applicable using maintenance manuals, repair schemes or approved maintenance data
- 4.3. All checks required by approved maintenance data to ensure correct operation of all disturbed systems are performed
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. 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.
Troubleshooting
The competency applies to the troubleshooting from first principles, of defects beyond available maintenance data in the systems of fixed or rotary wing aircraft types. Troubleshooting must be demonstrated across a range of typical systems and system components that includes, but is not limited to:
airframes, their engines and all systems (and parts thereof) operated by inherently mechanical or hydro-mechanical principles or means
Coverage is not required of specific type systems that are included in type training and PCT activities leading to a specific type licence rating
Application
Application of this unit may relate to:
scheduled or unscheduled maintenance activities
individual activities or troubleshooting tasks that would be performed during supervision of other personnel
Procedures and requirements
Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise
Applicable systems
Affected systems may include:
hydro-mechanical systems
pneumatic systems
flight control systems
engines and engine systems
propeller and rotor systems
Troubleshooting
The competency applies to the troubleshooting from first principles, of defects beyond available maintenance data in the systems of fixed or rotary wing aircraft types. Troubleshooting must be demonstrated across a range of typical systems and system components that includes, but is not limited to:
airframes, their engines and all systems (and parts thereof) operated by inherently mechanical or hydro-mechanical principles or means
Coverage is not required of specific type systems that are included in type training and PCT activities leading to a specific type licence rating
Application
Application of this unit may relate to:
scheduled or unscheduled maintenance activities
individual activities or troubleshooting tasks that would be performed during supervision of other personnel
Procedures and requirements
Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise
Applicable systems
Affected systems may include:
hydro-mechanical systems
pneumatic systems
flight control systems
engines and engine systems
propeller and rotor systems
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 system theory knowledge and advanced fault diagnostic skills to identify the causes of defects not covered fully by maintenance manual fault diagnosis guides while observing all relevant safety precautions.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The underlying skills inherent in this unit should be transferable across a range of inspection, testing and troubleshooting applications related to mechanical systems, and where applicable other system interfaces/integration. It is essential that system test procedures take into account all safety precautions applicable to the system being maintained. Ability to interpret inspection procedures and specifications (allowable limits) and ensure that they are applied in practice is critical, as is the demonstrated ability to apply fundamental system theory in the logical diagnosis of complex faults.
Evidence of transferability of skills and knowledge related to performance and supervision of inspection, testing and troubleshooting is essential. This must be demonstrated through application across a number of aircraft mechanical systems, including system interfaces/integration. The troubleshooting approach should clearly demonstrate an in-depth knowledge of underpinning theory of a system, with this knowledge being used in a logical process to augment and extend the scope of the aircraft/ system fault-finding guide. The fault rectification work plan should take account of applicable safety (including safe handling of heavy components) 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 and the ability to identify the causes of defects not covered fully by maintenance manual fault diagnosis guides has been demonstrated under supervision without intervention. This shall be established via simulated activities at the CASR Part 147 Maintenance Training Organisation and performance during observed workplace activities.
Context of and specific resources for assessment
Competency is assessed in the workplace or simulated workplace and shall involve successfully dealing with a number of maintenance and fault scenarios across a range of systems listed in the Range Statement and related system components.
Method of assessment
Guidance information for assessment
Overview of assessment
A person who demonstrates competency in this unit must be able to apply system theory knowledge and advanced fault diagnostic skills to identify the causes of defects not covered fully by maintenance manual fault diagnosis guides while observing all relevant safety precautions.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The underlying skills inherent in this unit should be transferable across a range of inspection, testing and troubleshooting applications related to mechanical systems, and where applicable other system interfaces/integration. It is essential that system test procedures take into account all safety precautions applicable to the system being maintained. Ability to interpret inspection procedures and specifications (allowable limits) and ensure that they are applied in practice is critical, as is the demonstrated ability to apply fundamental system theory in the logical diagnosis of complex faults.
Evidence of transferability of skills and knowledge related to performance and supervision of inspection, testing and troubleshooting is essential. This must be demonstrated through application across a number of aircraft mechanical systems, including system interfaces/integration. The troubleshooting approach should clearly demonstrate an in-depth knowledge of underpinning theory of a system, with this knowledge being used in a logical process to augment and extend the scope of the aircraft/ system fault-finding guide. The fault rectification work plan should take account of applicable safety (including safe handling of heavy components) 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 and the ability to identify the causes of defects not covered fully by maintenance manual fault diagnosis guides has been demonstrated under supervision without intervention. This shall be established via simulated activities at the CASR Part 147 Maintenance Training Organisation and performance during observed workplace activities.
Context of and specific resources for assessment
Competency is assessed in the workplace or simulated workplace and shall involve successfully dealing with a number of maintenance and fault scenarios across a range of systems listed in the Range Statement and related system components.
Method of assessment
Guidance information for assessment
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| AUE03 | MEA323 | Perform advanced troubleshooting in aircraft mechanical maintenance | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| S754 | MEA50210 | Diploma of Aeroskills (Mechanical) | Qualification |
| D751 | MEA50211 | Diploma of Aeroskills (Mechanical) | Qualification |
| W496 | MEA50207 | Diploma of Aeroskills (Mechanical) | Qualification |