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Evidence Guide: MEA320C - Test and troubleshoot aircraft hydro-mechanical, mechanical, gaseous and landing gear systems and components

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEA320C - Test and troubleshoot aircraft hydro-mechanical, mechanical, gaseous and landing gear systems and components

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare for troubleshooting

  1. Relevant maintenance documentation and modification status, including system defect/service difficulty reports where relevant, are interpreted to identify an unserviceability
Relevant maintenance documentation and modification status, including system defect/service difficulty reports where relevant, are interpreted to identify an unserviceability

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test hydro-mechanical, mechanical, gaseous and landing gear systems and components

  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
  2. Power is applied and system and components functionally tested, in accordance with specified procedures, for evidence of malfunction or leaks
  3. System calibration or adjustments are performed in accordance with specified procedures
The aircraft and hydro-mechanical, mechanical, gaseous and landing gear systems are correctly prepared, in accordance with specified procedures, for the application of power

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Power is applied and system and components functionally tested, in accordance with specified procedures, for evidence of malfunction or leaks

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System calibration or adjustments are performed in accordance with specified procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Troubleshoot hydro-mechanical, mechanical, gaseous and landing gear systems and components

  1. Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination
  2. Maintenance manual fault diagnosis guide and logical processes are used to ensure efficient and accurate troubleshooting
  3. Specialist advice is obtained, where required, to assist with the troubleshooting process
  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
  5. Fault rectification requirements are determined to assist in planning the repair or adjustment
Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintenance manual fault diagnosis guide and logical processes are used to ensure efficient and accurate troubleshooting

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Specialist advice is obtained, where required, to assist with the troubleshooting process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fault rectification requirements are determined to assist in planning the repair or adjustment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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 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.

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:

Hydraulic systems – a system and at least one component from each of hydro-mechanical system components 3 and 5

Fuel systems – a system and at least one component from each of 4 and 5

Landing gear systems – each listed system 6 to 8

Landing gear components – one each of 9 to 11

Gaseous systems – each listed system 12 to 15 and at least one component from each of gaseous system components 16 to 19

Mechanical systems – a system applicable to 20 and at least one component from each of mechanical system components 21 and 22.

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

Individuals being assessed who have already attained the following related units will have met the Performance Criteria and Range Statement variables for Elements listed:

Element 1 – any one of MEA309C Inspect, test and troubleshoot aircraft hydro-mechanical and landing gear system and components, or MEA310C Inspect, test and troubleshoot aircraft pneumatic systems and components

Elements 2 and 3 – MEA309C Inspect, test and troubleshoot aircraft hydro-mechanical and landing gear system and components, for hydro-mechanical system variables, and MEA310C Inspect, test and troubleshoot aircraft pneumatic systems and components, for gaseous system variables

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.

Required Skills and Knowledge

hydraulic, fuel, gaseous, mechanical and landing gear system layout, operation and characteristics and system component operation and construction, including electrical system interfaces

how to configure the aircraft for testing and troubleshooting of hydraulic, fuel, gaseous, mechanical and landing gear systems and components

standard trade practices relating to tool usage and installation/securing of aircraft hardware

fluid power theory

hydraulic system layout, operation and characteristics (including electrical and instrument 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 anti-skid systems

nose wheel steering systems

fuel system and component layout, operation and characteristics (including electrical system interfaces) and system component operation and construction

gaseous (pneumatic, air conditioning, pressurisation and fire-extinguishing system and component layout, operation and characteristics (including electrical and instrument interfaces) and system component operation and construction

construction and operation of landing gear components, including:

wheel assemblies

struts/oleos

uplocks and downlocks

mechanical systems and linkages, including those related to the above systems

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, fuel, gaseous, mechanical and landing gear systems and 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

Look for evidence that confirms skills in:

applying all relevant OHS procedures, including selection and use of PPE and MSDS

using maintenance manuals to prepare the aircraft for testing and troubleshooting of hydraulic, fuel, gaseous, flight control, landing gear and mechanical systems and components

use of hand skills, tools and systems knowledge in the testing, adjustment and troubleshooting of hydraulic, fuel, gaseous, mechanical and landing gear systems

use of hand skills, tools and component knowledge in the adjustment and troubleshooting of hydraulic, fuel, gaseous and mechanical system components

jacking of the aircraft, as required, for landing gear system testing, rigging and troubleshooting

use of hand skills, tools and system/component knowledge in the adjustment and troubleshooting of landing gear components

the effective use of maintenance documentation and relevant fault diagnosis guides in the troubleshooting process

the recognition of external defects in hydro-mechanical, gaseous, mechanical and landing gear systems and components

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

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

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

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

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

Troubleshooting

Troubleshooting involves the use of fault-finding charts or similar, to line replacement level

Application

Application of this unit may relate to:

scheduled or unscheduled maintenance activities

individual or team-related activities

Procedures and requirements

Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise