Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEA434 Mapping and Delivery Guide
Weld aircraft components using the plasma arc welding process

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEA434 - Weld aircraft components using the plasma arc welding process
Description
Employability Skills
Learning Outcomes and Application The unit of competency requires application and adaption of the skills and knowledge of MEM05044B Perform welds to code standards using gas tungsten arc welding process, to the plasma arc welding (PAW) of applicable aircraft parent metal groups as specified by the Regulators during scheduled or unscheduled maintenance. Work may be performed individually or as part of a team.The unit covers the development of competency elements required to gain approval within the Civil Aviation Safety Authority (CASA) or the Australian Defence Force (ADF) regulatory systems to weld aircraft components using the PAW process. Individuals will be authorised to weld specific parent metal groups, as specified in CAAP 33-1(1) Aircraft manual welding: approvals and qualifications or RAAF Specification Engineering W5003 Welders – Qualification for Aircraft, Missile and Aerospace Fusion welding.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Test pieces specified for each parent metal group for which approval is sought may be completed in the workplace or a simulated workplace. The individual must be provided with all required equipment, consumables, PPE, materials and data/drawings relating to the test pieces that are required for the approvals being sought.

Assessment of test pieces must be carried out in a testing facility that meets the requirements specified by the applicable Regulator.

Assessment methods are specified in the CAAP 33-1(0) Aircraft manual welding: approvals and qualifications or RAAF Specification Engineering W5003 Welders – Qualification for Aircraft, Missile and Aerospace Fusion welding.

Assessors must satisfy the requirements of the National Vocational Education and Training Regulator (Australian Skills Quality Authority, or its successors).
Prerequisites/co-requisites
Competency Field Aviation maintenance
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Prepare to perform repair or fabricate component using PAW process
  • Materials or component to be welded and the applicable parent metal group are identified in accordance with applicable data
  • Welding equipment is inspected for serviceability and correctly set up in accordance with standard operating procedures
  • Component (or materials) are prepared for welding
       
Element: Plasma arc weld component
  • Welds are performed to the required standard in accordance with the applicable repair scheme or drawing 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)
  • Completed welds are inspected for defects and any defects rectified
       
Element: Complete documentation
  • Required documentation is completed in accordance with standard enterprise procedures
       


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.

Prepare to perform repair or fabricate component using PAW process

1.1

Materials or component to be welded and the applicable parent metal group are identified in accordance with applicable data

1.2

Welding equipment is inspected for serviceability and correctly set up in accordance with standard operating procedures

1.3

Component (or materials) are prepared for welding

2.

Plasma arc weld component

2.1

Welds are performed to the required standard in accordance with the applicable repair scheme or drawing 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)

2.2

Completed welds are inspected for defects and any defects rectified

3.

Complete documentation

3.1

Required 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:

safely applying advanced gas tungsten arc welding skills defined in unit MEM05044B Perform welds to code standards using gas tungsten arc welding process, and adapting them to perform PAW of specified aircraft parent metal group materials or components to the standards specified by the relevant Regulator (CASA or the ADF)

applying welding principles (unit MEM05026C Apply welding principles) in the context of PAW of aircraft components or materials

inspecting PAW process equipment for serviceability with particular emphasis on the orifice

identifying weld requirements from applicable documentation

selecting and correctly using items of PPE applicable to PAW of aircraft components.

Evidence is required of the ability to produce plasma arc welds to required specifications consistently across the range of components that are being fabricated or repaired, while applying all relevant safety precautions. The ability to do this must be demonstrated through the production of the test pieces specified for the welding process and parent metal group in the CAAP 33-1(0) Aircraft manual welding: approvals and qualifications or RAAF Specification Engineering W5003 Welders – Qualification for Aircraft, Missile and Aerospace Fusion welding.

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:

regulatory requirements applicable to aircraft welding

standards applicable to aircraft welding

the procedure for assessment of weld test pieces

equipment required for PAW and its operation and maintenance requirements

the relative advantages of the plasma process for welding and cutting

the composition of gases used in the PAW process

safety precautions applicable to PAW and applicable PPE.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, 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.

Prepare to perform repair or fabricate component using PAW process

1.1

Materials or component to be welded and the applicable parent metal group are identified in accordance with applicable data

1.2

Welding equipment is inspected for serviceability and correctly set up in accordance with standard operating procedures

1.3

Component (or materials) are prepared for welding

2.

Plasma arc weld component

2.1

Welds are performed to the required standard in accordance with the applicable repair scheme or drawing 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)

2.2

Completed welds are inspected for defects and any defects rectified

3.

Complete documentation

3.1

Required 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.

Materials include:

Any metal used in the construction of aircraft components that is suitable for PAW

Components include:

Any aircraft component where PAW is specified as either a fabrication or repair technique

Parent metal groups against which welding authorities are individually granted are:

Aluminium alloys

Magnesium alloys

Carbon steels and low alloy steels

Corrosion and heat resisting steels

Nickel alloys

Copper-based alloys

Titanium alloys

Required standards are specified in:

Regulations relating to required test pieces

Process specifications

Repair manuals

Overhaul manuals

Australian and New Zealand Standards

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
Materials or component to be welded and the applicable parent metal group are identified in accordance with applicable data 
Welding equipment is inspected for serviceability and correctly set up in accordance with standard operating procedures 
Component (or materials) are prepared for welding 
Welds are performed to the required standard in accordance with the applicable repair scheme or drawing 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) 
Completed welds are inspected for defects and any defects rectified 
Required documentation is completed in accordance with standard enterprise procedures 

Forms

Assessment Cover Sheet

MEA434 - Weld aircraft components using the plasma arc welding process
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

MEA434 - Weld aircraft components using the plasma arc welding process

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: