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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Inspect hydro-mechanical systems and components
   • Isolation tags already attached to the system or related systems are checked and aircraft configured for safe system inspection and operation in accordance with specified procedures
   • Hydro-mechanical system and system components are visually or physically checked for external signs of defects in accordance with specified procedures
2. Inspect landing gear systems and components
   • Isolation tags already attached to the system or related systems are checked and aircraft configured, including jacking, where necessary, for safe system inspection and operation in accordance with specified procedures
   • Landing gear system and system components are visually or physically checked for external signs of defects in accordance with specified procedures
3. Test hydro-mechanical and landing gear systems
   • The aircraft and hydro-mechanical systems are correctly prepared in accordance with specified procedures for the application of power
   • Power is applied and system functionally tested in accordance with specified procedures for evidence of malfunction or leaks
   • System calibration or adjustments are performed in accordance with specified procedures
4. Prepare for troubleshooting
   • Relevant maintenance documentation and modification status, including system defect/ service difficulty reports where relevant, are interpreted to identify an unserviceability
5. Troubleshoot hydro-mechanical and landing gear systems
   • Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination
   • Maintenance manual fault diagnosis guide and logical processes are used to ensure efficient and accurate troubleshooting
   • Specialist advice is obtained, where required, to assist with the troubleshooting process
   • Hydro-mechanical and landing gear system faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required
   • Fault rectification requirements are determined to assist in planning the repair or adjustment

Required Skills

Required skills

Look for evidence that confirms skills in using hand skills and tools in the inspection adjustment and troubleshooting of hydraulic fuel and landing gear systems using hand skills and tools in the inspection adjustment and troubleshooting of hydraulic and fuel system components jacking of the aircraft as required for landing gear system inspection testing and troubleshooting using hand skills and tools in the inspection adjustment and troubleshooting of landing gear components using of maintenance manuals to prepare the aircraft for inspection testing and troubleshooting of hydromechanical and landing gear systems and components effectively using maintenance documentation and relevant fault diagnosis guides in the troubleshooting process recognising external defects in hydromechanical and landing gear systems and components applying standard procedures observing all relevant OHS practices including the use of MSDS and PPE

Required knowledge

Look for evidence that confirms knowledge of standard trade practices relating to tool usage and installationsecuring of aircraft hardware fluid power theory hydraulic system layout operation and characteristics including electrical system interfaces and system component construction and operation for flight control systems including primary controls flaps speed brakes and spoilers landing gear retraction systems brake and antiskid systems nosewheel steering systems fuel system and component layout operation and characteristics including electrical system interfaces and system component operation and construction construction and operation of landing gear components including wheel assemblies skids floats strutsoleos uplocks and downlocks mechanical linkages how to configure the aircraft for inspection testing and troubleshooting of hydraulic fuel and landing gear systems and components maintenance requirements and troubleshooting procedures relevant OHS practices relating to hydraulic systems fuel systems and landing gear components including lifting and handling of heavy items how to obtain MSDS selection and use of PPE relevant maintenance manuals relevant regulatory requirements and standard procedures

Evidence Required

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 inspect test and troubleshoot a range of hydraulic and fuel system and landing gear components that are representative of the scope of the listed variables in accordance with relevant maintenance manual instructions while applying all relevant OHS procedures and standard procedures Coverage of brakes and strutsoleos are not required where the aircraft is rotary wing and is fitted with skids or floats
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 including the timely involvement of supervisors or other trades associated with aircraft hydromechanical 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 operationswitching 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 inspection 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 aircraftsystem fault finding guide before undertaking any action The 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 this unit of competency are being achieved under routine supervision on each type of system Groups on at least one component of each group listed in the Range Statement against hydromechanical system components to landing gear system components to Where the aircraft is rotary wing and is fitted with skids or floats coverage of Groups and is not required and where a rotary wing aircraft is fitted with a fixed undercarriage with wheels coverage of Groups and is not required 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 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
Method of assessment
Guidance information for assessment

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Range Statement

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.
Note	Range statements listed below are numbered to facilitate specification of the assessment requirements included in the Evidence Guide
Systems and system 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 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, skids and floats 10. Brake units 11. Struts/oleos (Additional components of landing gear systems are included in hydro-mechanical system components)
Troubleshooting	Troubleshooting involves the use of fault finding charts or similar, to line replacement level
	Application of this unit of competency may relate to: scheduled or unscheduled maintenance individual or team-related activities
Procedures and requirements	Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise
Electrical interface	The work can include associated electrical loom terminations and/or plugs

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