Assessor Resource

MEA414
Remove light corrosion from aircraft

Assessment tool

Version 1.0
Issue Date: May 2024


This unit of competency requires application of skills and knowledge relating to the removal of light corrosion from the surfaces of fixed and rotary wing aircraft structure.

No licensing requirements apply to this unit at the time of publication, but compliance with legislation and regulations for the handling and disposal of hazardous materials is included in the unit.

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.

Identify corrosion damage

1.1

Signs of corrosion are identified through visual inspection

1.2

The type of corrosion is identified

1.3

The severity of corrosion damage is determined and damage more severe than light surface corrosion is documented and reported in accordance with standard enterprise procedures

2.

Remove light corrosion

2.1

The applicable corrosion removal method is selected in accordance with enterprise procedures

2.2

Work health and safety (WHS) requirements are identified and complied with and personal protective equipment (PPE) is checked for correct fit and function

2.3

Materials and tools required for corrosion removal are assembled

2.4

Surface is prepared and corrosion removed using the selected removal method

3.

Clean area and equipment

3.1

Surface is cleaned of all chemical residue and mechanical media, in accordance with enterprise procedures, ready for the next process

3.2

Equipment is cleaned in accordance with enterprise procedures or manufacturer’s instructions

3.3

Equipment is checked for serviceability and unserviceable items are dealt with in accordance with enterprise procedures

3.4

Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures

3.5

Documentation is completed 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 WHS procedures relating to light corrosion removal, including the selection and correct use of PPE

recognising types of corrosion and of damage that exceeds light surface corrosion

applying enterprise procedures for removal of light corrosion

selection and use of applicable corrosion removal methods, equipment and tools

using MSDS

cleaning of surfaces following corrosion removal

correctly disposing of waste materials

cleaning and maintenance of equipment and tools.

The underlying skills inherent in this unit should be transferable across a range of tasks involving the removal of light corrosion damage from the surfaces of aircraft structure. It is essential that applicable processes, cleanliness requirements and safety precautions, including the correct use of PPE, and application of environmental protection procedures are fully observed, understood and complied with. Ability to interpret corrosion removal procedures and apply them in practice is critical.

This is to be demonstrated through corrosion removal using mechanical, manual and chemical means across a range of aircraft tasks.

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:

relevant enterprise procedures and maintenance publications

WHS procedures relating to the removal of aerospace coatings, including PPE

how to obtain MSDS

types of chemicals used for corrosion removal and methods of application

mechanical methods that can be used for corrosion removal

cleaning methods following corrosion removal

environmental legislation and regulations relating to the storage, use and disposal of hazardous materials.

Competency should be assessed in the workplace or simulated workplace using materials, tools and equipment specified in the maintenance manuals and applicable procedures. It is also expected that general and special-purpose tools and ground support equipment 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 a representative range of light corrosion removal tasks using applicable mechanical, manual and chemical removal methods as listed in the Range of Conditions.

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.

Identify corrosion damage

1.1

Signs of corrosion are identified through visual inspection

1.2

The type of corrosion is identified

1.3

The severity of corrosion damage is determined and damage more severe than light surface corrosion is documented and reported in accordance with standard enterprise procedures

2.

Remove light corrosion

2.1

The applicable corrosion removal method is selected in accordance with enterprise procedures

2.2

Work health and safety (WHS) requirements are identified and complied with and personal protective equipment (PPE) is checked for correct fit and function

2.3

Materials and tools required for corrosion removal are assembled

2.4

Surface is prepared and corrosion removed using the selected removal method

3.

Clean area and equipment

3.1

Surface is cleaned of all chemical residue and mechanical media, in accordance with enterprise procedures, ready for the next process

3.2

Equipment is cleaned in accordance with enterprise procedures or manufacturer’s instructions

3.3

Equipment is checked for serviceability and unserviceable items are dealt with in accordance with enterprise procedures

3.4

Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures

3.5

Documentation is completed 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.

Procedures and requirements include:

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

Signs of corrosion include:

Surface deformed

Paint blistered or flaked

Powder

Discolouration

Types of corrosion include:

Uniform etch

Pitting

Intergranular

Exfoliation

Filiform

Galvanic

WHS requirements are identified from:

Commonwealth/state/territory WHS legislation, regulations and codes

Procedures manuals

Safety manuals

Work instructions

Maintenance organisation manuals

Material safety data sheets (MSDS)

Defence regulations and instructions

Standing instructions

Materials and tools include:

Micro grinder

Sanders

Plastic media blasting equipment

Abrasive pads

Wet/dry abrasive papers

Chemicals

PPE applicable to task

Selected removal methods include:

Light mechanical using micro grinder, sander or plastic media blasting

Manual removal using wet/dry abrasive papers or abrasive pads

Chemical

Legislative, regulatory and enterprise procedures include:

Commonwealth/state/territory environmental legislation, regulations and codes for the storage and disposal of hazardous and toxic materials

MSDS

Maintenance organisation manuals

Procedures manuals

Work instructions

Relevant Defence regulations and instructions

Standing instructions

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 WHS procedures relating to light corrosion removal, including the selection and correct use of PPE

recognising types of corrosion and of damage that exceeds light surface corrosion

applying enterprise procedures for removal of light corrosion

selection and use of applicable corrosion removal methods, equipment and tools

using MSDS

cleaning of surfaces following corrosion removal

correctly disposing of waste materials

cleaning and maintenance of equipment and tools.

The underlying skills inherent in this unit should be transferable across a range of tasks involving the removal of light corrosion damage from the surfaces of aircraft structure. It is essential that applicable processes, cleanliness requirements and safety precautions, including the correct use of PPE, and application of environmental protection procedures are fully observed, understood and complied with. Ability to interpret corrosion removal procedures and apply them in practice is critical.

This is to be demonstrated through corrosion removal using mechanical, manual and chemical means across a range of aircraft tasks.

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:

relevant enterprise procedures and maintenance publications

WHS procedures relating to the removal of aerospace coatings, including PPE

how to obtain MSDS

types of chemicals used for corrosion removal and methods of application

mechanical methods that can be used for corrosion removal

cleaning methods following corrosion removal

environmental legislation and regulations relating to the storage, use and disposal of hazardous materials.

Competency should be assessed in the workplace or simulated workplace using materials, tools and equipment specified in the maintenance manuals and applicable procedures. It is also expected that general and special-purpose tools and ground support equipment 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 a representative range of light corrosion removal tasks using applicable mechanical, manual and chemical removal methods as listed in the Range of Conditions.

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
Signs of corrosion are identified through visual inspection 
The type of corrosion is identified 
The severity of corrosion damage is determined and damage more severe than light surface corrosion is documented and reported in accordance with standard enterprise procedures 
The applicable corrosion removal method is selected in accordance with enterprise procedures 
Work health and safety (WHS) requirements are identified and complied with and personal protective equipment (PPE) is checked for correct fit and function 
Materials and tools required for corrosion removal are assembled 
Surface is prepared and corrosion removed using the selected removal method 
Surface is cleaned of all chemical residue and mechanical media, in accordance with enterprise procedures, ready for the next process 
Equipment is cleaned in accordance with enterprise procedures or manufacturer’s instructions 
Equipment is checked for serviceability and unserviceable items are dealt with in accordance with enterprise procedures 
Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures 
Documentation is completed in accordance with standard enterprise procedures 

Forms

Assessment Cover Sheet

MEA414 - Remove light corrosion from aircraft
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

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Assessor name:

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Date:

Assessment Record Sheet

MEA414 - Remove light corrosion from aircraft

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: