Modification History
References to flight controls removed from Range Statement - equivalent to previous version.
Unit Descriptor
This unit of competency is part of the Mechanical Certificate IV (Aircraft Maintenance Stream) training pathways and must be taken with MEA318C Inspect aircraft hydro-mechanical, mechanical, gaseous and landing gear systems and components. It covers the competencies required to test and troubleshoot hydro-mechanical, mechanical, gaseous and landing gear systems and components. The unit is used in workplaces that operate under the airworthiness regulatory systems of the ADF and CASA.
Where a CASA licensing outcome is sought this unit forms part of the CASA requirements for the granting of the chosen B1 maintenance certification licence under CASR Part 66, in accordance with the licensing provisions in Section 3, Assessment Guidelines.
Application of the Unit
This unit requires application of hand skills, standard trade practices and systems knowledge in the testing and troubleshooting of aircraft hydro-mechanical, mechanical, gaseous and landing gear systems and components.
Applications include hydro-mechanical, mechanical, gaseous and landing gear systems and components fitted to fixed wing aircraft.
Licensing/Regulatory Information
Refer to unit descriptor
Pre-Requisites
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MEA318C |
Inspect aircraft hydro-mechanical, mechanical, gaseous and landing gear systems and components |
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
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Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
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1 |
Prepare for troubleshooting |
1.1 |
Relevant maintenance documentation and modification status, including system defect/service difficulty reports where relevant, are interpreted to identify an unserviceability |
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2 |
Test hydro-mechanical, mechanical, gaseous and landing gear systems and components |
2.1 |
The aircraft and hydro-mechanical, mechanical, gaseous and landing gear systems are correctly prepared, in accordance with specified procedures, for the application of power |
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2.2 |
Power is applied and system and components functionally tested, in accordance with specified procedures, for evidence of malfunction or leaks |
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2.3 |
System calibration or adjustments are performed in accordance with specified procedures |
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3 |
Troubleshoot hydro-mechanical, mechanical, gaseous and landing gear systems and components |
3.1 |
Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination |
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3.2 |
Maintenance manual fault diagnosis guide and logical processes are used to ensure efficient and accurate troubleshooting |
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3.3 |
Specialist advice is obtained, where required, to assist with the troubleshooting process |
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3.4 |
Hydro-mechanical, mechanical, gaseous and landing gear system and component faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required |
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3.5 |
Fault rectification requirements are determined to assist in planning the repair or adjustment |
Required Skills and Knowledge
Look for evidence that confirms skills in:
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Evidence Guide
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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. |
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Overview of assessment |
A person who demonstrates competency in this unit must be able to test and troubleshoot a range of hydraulic, fuel, gaseous and mechanical system and landing gear components in accordance with relevant maintenance manual instructions while applying all relevant OHS procedures and standard processes. |
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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 testing and troubleshooting applications (including the timely involvement of supervisors or other trades) associated with aircraft hydro-mechanical, gaseous, mechanical and landing gear systems and their components. It is essential that system test procedures take into account all safety precautions applicable to the system being maintained, especially where system operation/switching interrelates to other systems being maintained. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice is critical. Evidence of transferability of skills and knowledge related to testing and troubleshooting is essential. This may be demonstrated through application across a number of aircraft systems or aircraft types. The application of testing procedures should clearly indicate knowledge of system operation, the relationship of individual components and the links with other systems (if applicable) within the limits of the aircraft/system fault finding guide 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 this unit of competency are being achieved under routine supervision on each type of system and on at least one component of each group listed in the Range Statement, as follows:
This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide. |
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Context of and specific resources for assessment |
Competency should be assessed in the work environment or simulated work environment, using procedures, tools and equipment specified in maintenance documentation. It is also expected that general purpose tools, test and ground support equipment found in most routine situations would be used where appropriate. The level of troubleshooting is limited in its application to the use of fault diagnosis guides or other similar information. |
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Method of assessment |
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Guidance information for assessment |
Individuals being assessed who have already attained the following related units will have met the Performance Criteria and Range Statement variables for Elements listed:
Log of Industrial Experience and Achievement records relating to the listed units may be accepted as also meeting the evidence requirements for this unit in the applicable Elements for systems and components as listed in the Range Statement variables. Advice in MEA310C Inspect, test and troubleshoot aircraft pneumatic systems and components, regarding MEA355A Maintain light aircraft air cycle air conditioning systems, and MEA356A Maintain light piston engine aircraft pressurisation systems, may also be taken into consideration where applicable. |
Range Statement
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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. |
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Note |
Range statements listed below are numbered to facilitate specification of the assessment requirements included in the Evidence Guide |
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Hydro-mechanical systems and components |
Hydro-mechanical systems include: 1. Hydraulic systems 2. Fuel systems Components of hydro-mechanical systems include: 3. Hydraulic accumulators, filters, reservoirs, valves, pumps, motors, actuators, regulators and direct reading gauges 4. Fuel system filters, valves, pumps, rigid and flexible storage cells/tanks 5. Rigid and flexible pipelines, hoses and fittings |
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Landing gear systems and components (components of landing gear retraction, steering and braking systems are covered by hydro-mechanical and mechanical system components) |
Landing gear systems include: 6. Retraction systems 7. Steering systems 8. Brake systems, including anti-skid, where applicable Landing gear components include: 9. Wheel assemblies 10. Brake units 11. Struts/oleos |
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Gaseous systems and components |
Gaseous systems include: 12. Pneumatic 13. Air cycle air conditioning 14. Pressurisation 15. Fire-extinguishing Gaseous system components include: 16. Gauges (direct reading), temperature sensors, pressurisation controllers and temperature controllers 17. Heat exchangers, pressure vessels, condensers, compressors, expansion turbines, humidifiers, valves and actuators 18. Rigid and flexible pipelines and fittings 19. Ducting |
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Mechanical systems and components |
Mechanical systems include: 20. Mechanical operating and locking systems Mechanical system components include: 21. Cables, pulleys, guides, fairleads, tension regulators, chains and sprockets 22. Push/pull rods, torque tubes, bellcranks, screwjacks, clutches, springs, bearings and gears |
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Troubleshooting |
Troubleshooting involves the use of fault-finding charts or similar, to line replacement level |
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Application |
Application of this unit may relate to:
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Procedures and requirements |
Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise |
Unit Sector(s)
Aviation maintenance
Custom Content Section
Not applicable.
