Assessor Resource

MEA391
Repair and/or overhaul aircraft mechanical system components

Assessment tool

Version 1.0
Issue Date: May 2024


This unit of competency requires application of hand skills and the use of relevant maintenance manuals, drawings and specifications to repair and/or overhaul a range of fixed and rotary wing aircraft mechanical components during the performance of scheduled or unscheduled maintenance. Maintenance may be performed individually or as part of a team.

Components may be from systems such as flight controls, landing gear retraction, nose wheel steering and transmissions other than those that are part of power plant assemblies.

This unit of competency is part of the Mechanical Certificate IV (Component Workshop Maintenance Stream) training pathway. The unit is used in workplaces that operate under the airworthiness regulatory systems of the Australian Defence Force (ADF) and the Civil Aviation Safety Authority (CASA).

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements describe the essential outcomes.

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

1.

Determine requirements

1.1

Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers

1.2

Mechanical components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required

1.3

Modification status is clearly established to assist in determining the overhaul requirements for the components

1.4

Extent of overhaul or repair is identified and documented in accordance with standard enterprise procedures

2.

Troubleshoot mechanical components

2.1

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

2.2

Logical processes are used to ensure efficient and accurate troubleshooting

2.3

Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement

2.4

Mechanical component faults are located and the causes of the faults are clearly identified

2.5

Fault rectification requirements are determined to assist in planning the repair

3.

Dismantle and inspect mechanical component parts

3.1

Mechanical component parts are dismantled in accordance with maintenance manuals while observing all relevant work health and safety (WHS) requirements, including the use of material safety data sheets (MSDS) and items of personal protective equipment (PPE)

3.2

Component parts are assessed for serviceability in accordance with the relevant maintenance documentation

3.3

Parts requiring specialist repair are tagged and repair instructions are specified in accordance with standard enterprise procedures

3.4

Parts requiring non-destructive testing (NDT) are prepared for testing in accordance with the relevant maintenance documentation

3.5

Parts lists are compiled and processed in accordance with standard enterprise procedures

4.

Repair and/or modify mechanical

4.1

Component parts are repaired or replaced in accordance with the relevant maintenance documentation

4.2

Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures

5.

Assemble, test and adjust mechanical components

5.1

Mechanical component parts are assembled within specified tolerances and in accordance with the appropriate maintenance documents while observing all relevant WHS requirements, including the use of MSDS and items of PPE

5.2

Components are adjusted, tested or calibrated to operate within prescribed specifications

5.3

Finished components are tagged, sealed and packaged in accordance with standard enterprise procedures

5.4

Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures

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 procedures

using MSDS and applicable items of PPE

using relevant maintenance documentation and aircraft/component manuals relating to mechanical system components to:

recognise state of serviceability and overhaul or repair requirements

test and accurately and efficiently troubleshoot unserviceabilities and document the causes

dismantle and inspect component parts for serviceability and identify repair requirements as applicable

repair/replace/modify component parts

assemble, test for correct operation and adjust components.

The underlying skills inherent in this unit should be transferable across a range of repair and overhaul applications associated with aircraft mechanical components. It is essential that the relevant procedures are interpreted and applied to ensure quality and safety standards are achieved.

This shall be demonstrated through application across a number of different aircraft components. Ability to assess component serviceability and interpret parts requirements will be necessary before undertaking any action.

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:

how to obtain relevant MSDS

the correct use of PPE

WHS procedures

fault diagnosis and component part inspection techniques

system and component operation

repair and overhaul procedures and processes.

Competency should be assessed in the work environment or simulated work environment using tools and equipment specified in maintenance documentation. It is also expected that general and special-purpose tools and test equipment found in most routine situations would be used where appropriate.

The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.

The following conditions of assessment represent the requirements of the Regulators (ADF and CASA) and maintenance stakeholders and must be rigorously observed.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements and performance criteria of the unit of competency are being achieved under routine supervision on at least one (1) component from each of the following groups:

gear boxes and transmissions (except for helicopter components which are covered by MEA390 Repair and/or overhaul rotary wing dynamic components)

screwjacks

mechanical actuators

control rods, bellcranks, walking beams and links.

This must include demonstration of the following repair processes:

finishing or re-finishing of metal surfaces through processes, such as polishing and lapping

removal of corrosion within maintenance manual limits

replacement of seals and gaskets

replacement of bearings

application of surface treatments, such as alodining

restoration of paint finishes

This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide (for details refer to the Companion Volume Assessment Guidelines).

Assessors must satisfy the requirements of the National Vocational Education and Training Regulator (Australian Skills Quality Authority, or its successors).


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements describe the essential outcomes.

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

1.

Determine requirements

1.1

Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers

1.2

Mechanical components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required

1.3

Modification status is clearly established to assist in determining the overhaul requirements for the components

1.4

Extent of overhaul or repair is identified and documented in accordance with standard enterprise procedures

2.

Troubleshoot mechanical components

2.1

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

2.2

Logical processes are used to ensure efficient and accurate troubleshooting

2.3

Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement

2.4

Mechanical component faults are located and the causes of the faults are clearly identified

2.5

Fault rectification requirements are determined to assist in planning the repair

3.

Dismantle and inspect mechanical component parts

3.1

Mechanical component parts are dismantled in accordance with maintenance manuals while observing all relevant work health and safety (WHS) requirements, including the use of material safety data sheets (MSDS) and items of personal protective equipment (PPE)

3.2

Component parts are assessed for serviceability in accordance with the relevant maintenance documentation

3.3

Parts requiring specialist repair are tagged and repair instructions are specified in accordance with standard enterprise procedures

3.4

Parts requiring non-destructive testing (NDT) are prepared for testing in accordance with the relevant maintenance documentation

3.5

Parts lists are compiled and processed in accordance with standard enterprise procedures

4.

Repair and/or modify mechanical

4.1

Component parts are repaired or replaced in accordance with the relevant maintenance documentation

4.2

Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures

5.

Assemble, test and adjust mechanical components

5.1

Mechanical component parts are assembled within specified tolerances and in accordance with the appropriate maintenance documents while observing all relevant WHS requirements, including the use of MSDS and items of PPE

5.2

Components are adjusted, tested or calibrated to operate within prescribed specifications

5.3

Finished components are tagged, sealed and packaged in accordance with standard enterprise procedures

5.4

Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures

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.

Mechanical components include:

Gear boxes and transmissions (except for helicopter components which are covered by MEA390 Repair and/or overhaul rotary wing dynamic components)

Screwjacks

Mechanical actuators

Control rods, bellcranks, walking beams and links

Repair of component parts includes:

Finishing or re-finishing of metal surfaces through processes, such as polishing and lapping

Removal of corrosion within maintenance manual limits

Replacement of seals and gaskets

Replacement of bearings

Application of surface treatments, such as alodining

Restoration of paint finishes

Procedures and requirements include:

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

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 procedures

using MSDS and applicable items of PPE

using relevant maintenance documentation and aircraft/component manuals relating to mechanical system components to:

recognise state of serviceability and overhaul or repair requirements

test and accurately and efficiently troubleshoot unserviceabilities and document the causes

dismantle and inspect component parts for serviceability and identify repair requirements as applicable

repair/replace/modify component parts

assemble, test for correct operation and adjust components.

The underlying skills inherent in this unit should be transferable across a range of repair and overhaul applications associated with aircraft mechanical components. It is essential that the relevant procedures are interpreted and applied to ensure quality and safety standards are achieved.

This shall be demonstrated through application across a number of different aircraft components. Ability to assess component serviceability and interpret parts requirements will be necessary before undertaking any action.

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:

how to obtain relevant MSDS

the correct use of PPE

WHS procedures

fault diagnosis and component part inspection techniques

system and component operation

repair and overhaul procedures and processes.

Competency should be assessed in the work environment or simulated work environment using tools and equipment specified in maintenance documentation. It is also expected that general and special-purpose tools and test equipment found in most routine situations would be used where appropriate.

The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.

The following conditions of assessment represent the requirements of the Regulators (ADF and CASA) and maintenance stakeholders and must be rigorously observed.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements and performance criteria of the unit of competency are being achieved under routine supervision on at least one (1) component from each of the following groups:

gear boxes and transmissions (except for helicopter components which are covered by MEA390 Repair and/or overhaul rotary wing dynamic components)

screwjacks

mechanical actuators

control rods, bellcranks, walking beams and links.

This must include demonstration of the following repair processes:

finishing or re-finishing of metal surfaces through processes, such as polishing and lapping

removal of corrosion within maintenance manual limits

replacement of seals and gaskets

replacement of bearings

application of surface treatments, such as alodining

restoration of paint finishes

This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide (for details refer to the Companion Volume Assessment Guidelines).

Assessors must satisfy the requirements of the National Vocational Education and Training Regulator (Australian Skills Quality Authority, or its successors).

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers 
Mechanical components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required 
Modification status is clearly established to assist in determining the overhaul requirements for the components 
Extent of overhaul or repair is identified and documented in accordance with standard enterprise procedures 
Available information from maintenance records and test results is used, where necessary, to assist in fault determination 
Logical processes are used to ensure efficient and accurate troubleshooting 
Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement 
Mechanical component faults are located and the causes of the faults are clearly identified 
Fault rectification requirements are determined to assist in planning the repair 
Mechanical component parts are dismantled in accordance with maintenance manuals while observing all relevant work health and safety (WHS) requirements, including the use of material safety data sheets (MSDS) and items of personal protective equipment (PPE) 
Component parts are assessed for serviceability in accordance with the relevant maintenance documentation 
Parts requiring specialist repair are tagged and repair instructions are specified in accordance with standard enterprise procedures 
Parts requiring non-destructive testing (NDT) are prepared for testing in accordance with the relevant maintenance documentation 
Parts lists are compiled and processed in accordance with standard enterprise procedures 
Component parts are repaired or replaced in accordance with the relevant maintenance documentation 
Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures 
Mechanical component parts are assembled within specified tolerances and in accordance with the appropriate maintenance documents while observing all relevant WHS requirements, including the use of MSDS and items of PPE 
Components are adjusted, tested or calibrated to operate within prescribed specifications 
Finished components are tagged, sealed and packaged in accordance with standard enterprise procedures 
Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures 

Forms

Assessment Cover Sheet

MEA391 - Repair and/or overhaul aircraft mechanical system components
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

MEA391 - Repair and/or overhaul aircraft mechanical system components

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: