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Evidence Guide: MEA219 - Inspect, test and troubleshoot aircraft pressurisation control 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!

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MEA219 - Inspect, test and troubleshoot aircraft pressurisation control systems and components

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

Inspect pressurisation control systems and components

  1. Relevant maintenance documentation and modification status, including system defect reports, where relevant, are used to identify specific inspection requirements
  2. Isolation tags are checked and aircraft configured for safe system inspection and operation in accordance with the applicable maintenance manual
  3. Pressurisation control systems and components are visually or physically checked for external signs of defects in accordance with applicable maintenance manual while observing all relevant work health and safety (WHS) requirements
  4. Defects are correctly identified and reported
Relevant maintenance documentation and modification status, including system defect reports, where relevant, are used to identify specific inspection requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Isolation tags are checked and aircraft configured for safe system inspection and operation in accordance with the applicable maintenance manual

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pressurisation control systems and components are visually or physically checked for external signs of defects in accordance with applicable maintenance manual while observing all relevant work health and safety (WHS) requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Defects are correctly identified and reported

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test/adjust pressurisation control systems and components

  1. Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation
  2. Pressurisation control systems are functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction
  3. System calibration or adjustments are performed in accordance with maintenance manual, as appropriate
Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pressurisation control systems are functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System calibration or adjustments are performed in accordance with maintenance manual, as appropriate

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Troubleshoot pressurisation control systems

  1. Available information from maintenance documentation, inspection and test results is used, where necessary, to assist in fault determination
  2. Maintenance manual fault diagnosis guides and logic processes are used to ensure efficient and accurate troubleshooting to line replacement level
  3. Specialist advice is obtained, where required, to assist with the troubleshooting process
  4. Pressurisation control system faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, in accordance with standard enterprise procedures
  5. Rectification requirements are determined
Available information from maintenance documentation, inspection and test results is used, where necessary, to assist in fault determination

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintenance manual fault diagnosis guides and logic processes are used to ensure efficient and accurate troubleshooting to line replacement level

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pressurisation control system faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, in accordance with standard enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Rectification requirements are determined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Inspect pressurisation control systems and components

1.1

Relevant maintenance documentation and modification status, including system defect reports, where relevant, are used to identify specific inspection requirements

1.2

Isolation tags are checked and aircraft configured for safe system inspection and operation in accordance with the applicable maintenance manual

1.3

Pressurisation control systems and components are visually or physically checked for external signs of defects in accordance with applicable maintenance manual while observing all relevant work health and safety (WHS) requirements

1.4

Defects are correctly identified and reported

2.

Test/adjust pressurisation control systems and components

2.1

Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation

2.2

Pressurisation control systems are functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction

2.3

System calibration or adjustments are performed in accordance with maintenance manual, as appropriate

3.

Troubleshoot pressurisation control systems

3.1

Available information from maintenance documentation, inspection and test results is used, where necessary, to assist in fault determination

3.2

Maintenance manual fault diagnosis guides and logic processes are used to ensure efficient and accurate troubleshooting to line replacement level

3.3

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

3.4

Pressurisation control system faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, in accordance with standard enterprise procedures

3.5

Rectification requirements are determined

Required Skills and Knowledge

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Inspect pressurisation control systems and components

1.1

Relevant maintenance documentation and modification status, including system defect reports, where relevant, are used to identify specific inspection requirements

1.2

Isolation tags are checked and aircraft configured for safe system inspection and operation in accordance with the applicable maintenance manual

1.3

Pressurisation control systems and components are visually or physically checked for external signs of defects in accordance with applicable maintenance manual while observing all relevant work health and safety (WHS) requirements

1.4

Defects are correctly identified and reported

2.

Test/adjust pressurisation control systems and components

2.1

Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation

2.2

Pressurisation control systems are functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction

2.3

System calibration or adjustments are performed in accordance with maintenance manual, as appropriate

3.

Troubleshoot pressurisation control systems

3.1

Available information from maintenance documentation, inspection and test results is used, where necessary, to assist in fault determination

3.2

Maintenance manual fault diagnosis guides and logic processes are used to ensure efficient and accurate troubleshooting to line replacement level

3.3

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

3.4

Pressurisation control system faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, in accordance with standard enterprise procedures

3.5

Rectification requirements are determined

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

applying relevant WHS practices

using approved maintenance documentation and aircraft publications relating to the pressurisation control system being maintained

recognition of system and component defects/external damage, correct installation, connection of plugs, terminations, attaching hardware (including cabling/harnesses) and security in:

cabin altimeters, differential pressure indicators and cabin rate of climb indicators

pressure controllers (manual and automatic)

safety switches

applying logic processes, taking and interpreting system measurements, and using test equipment and appropriate wiring diagrams and manuals to accurately and effectively isolate malfunctions in the listed system components

assisting with the performance of pressurisation system testing to isolate system malfunctions and assess post-maintenance serviceability.

It is essential that system testing procedures, cleanliness requirements and safety precautions applicable to the pressurisation control system being maintained are fully observed, understood and complied with. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice across a range of inspection, testing and troubleshooting applications (including the timely involvement of supervisors or other trades) is critical.

Evidence of transferability of skills and knowledge related to inspection, testing and troubleshooting is essential. This is to be demonstrated through application across a pressurisation control system and its components.

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

component attachment methods

the basic layout (block diagram level), function and operation of the listed components and their operation and function within the aircraft pressurisation system, including applicable interface with the outflow and safety valves:

cabin altimeters

differential pressure indicators

cabin rate of climb indicators

pressure controllers (manual and automatic)

safety switches

basic principles/functions, relating to the listed system components and associated with:

basic alternating current (AC) and direct current (DC) circuit theory

digital fundamentals

analogue fundamentals

atmospheric conditions, properties and effect on humans

pressurisation terminology

pressurisation control system maintenance requirements and troubleshooting procedures

relevant WHS practices

relevant maintenance manuals

relevant regulatory requirements and standard procedures.

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Pressurisation control systems include:

Cabin altimeters

Differential pressure indicators

Cabin rate of climb indicators

Pressure controllers (manual and automatic)

Safety switches

Procedures and requirements include:

Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise