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

MEA287A Mapping and Delivery Guide
Repair or overhaul aircraft oxygen system components

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEA287A - Repair or overhaul aircraft oxygen system components
Description This unit of competency is part of the Avionic Certificate IV (Component Workshop Maintenance Stream) training pathway. It covers the competencies required for the repair or overhaul of aircraft oxygen system components. This unit is used in workplaces that operate under the airworthiness regulatory systems of the ADF and CASA.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit requires application of hand skills, maintenance publications, test equipment and knowledge of oxygen component maintenance and hygiene requirements to repair and overhaul aircraft oxygen system components.Applications include oxygen system components from fixed and rotary wing aircraft that are repaired or overhauled in aviation maintenance workshops.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites MEA101B Interpret occupational health and safety practices in aviation maintenanceMEA103B Plan and organise aviation maintenance work activityMEA105C Apply quality standards applicable to aviation maintenance processesMEA107B Interpret and use aviation maintenance industry manuals and specificationsMEA108B Complete aviation maintenance industry documentationMEA109B Perform basic hand skills, standard trade practices and fundamentals in aviation maintenance Not applicable
Competency Field
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: Determine requirements
  • Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers
  • System 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 correctly identified and documented
       
Element: Troubleshoot oxygen system components
  • 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
  • System component faults are located and the causes of the faults are clearly identified
  • Fault rectification requirements are determined to assist in planning the repair
       
Element: Dismantle and inspect oxygen system components
  • System component parts are dismantled in accordance with maintenance manuals
  • Component parts are assessed for serviceability in accordance with the relevant maintenance documentation
  • Parts requiring specialist repair are tagged and repair instructions are accurately specified
  • Parts lists are compiled and processed in accordance with standard enterprise procedures
       
Element: Repair and/or modify oxygen system components
  • System 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
       
Element: Assemble, test and adjust oxygen system components
  • Assembly of component parts is carried out within specified tolerances and in accordance with the appropriate maintenance documents
  • System components are adjusted or calibrated to operate within prescribed specifications
  • Finished components are tagged, sealed and packaged in accordance with specified procedures
  • Required maintenance documentation and modification records are completed and processed 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.

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 repair and overhaul aircraft oxygen system components in accordance with maintenance manuals and regulatory/industry procedures while observing all relevant safety precautions and product hygiene requirements.

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 repair or overhaul applications associated with oxygen system components. It is essential that the maintenance procedures are interpreted and applied to ensure quality and safety standards are fully observed, understood and complied with. Capability to interpret inspection procedures and specifications (allowable limits) and apply them in practice is critical.

Evidence of transferability of skills and knowledge related to repair is essential. This may be demonstrated through application across a representative range of oxygen components. Ability to assess component serviceability and interpret parts requirements will be necessary to supplement the required evidence. The application of testing procedures should also clearly indicate knowledge of system operation before undertaking any action. Knowledge of system operation and the relationship of individual components will be necessary to supplement evidence of ability to troubleshoot component faults. 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 the unit of competency are being achieved under routine supervision across Groups 1 to 4 as listed in the Range Statement. 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 tools and equipment specified in maintenance manuals. It is also expected that general and special purpose tools and test equipment would be used where appropriate.

Method of assessment

Guidance information for assessment

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.

Required skills

Look for evidence that confirms skills in:

applying relevant OHS practices

using approved repair/overhaul procedures and processes relating to oxygen components

recognising the serviceability state and repair or overhaul requirements for oxygen pressure cylinders, valves, gauges, chemical generators, regulators, masks, pipes, hoses and fittings, and LDBO converters

applying logic processes, and using test equipment and appropriate wiring diagrams and manuals to isolate component faults

performing component testing to isolate/confirm component fault and assess post-repair/overhaul serviceability

correctly disassembling, inspecting component parts, repairing/replacing/modifying component parts and assembling oxygen components

applying product hygiene procedures

Required knowledge

Look for evidence that confirms knowledge of:

component and system operation

explaining the basic function and operation of oxygen components to enable testing for fault isolation/confirmation, to determine repair or overhaul requirements, and serviceability status post-repair or overhaul

explaining basic principles/functions relating to oxygen components and associated with:

pressure sensitive devices (bellows and controllers)

vacuum system generation

atmosphere and its properties

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

Oxygen system components

System components and related activities may include:

1. Pressure vessels (testing and charging)

2. Regulators, control valves and indicators

3. Chemical oxygen generators

4. Product hygiene

Application of this unit may relate to:

scheduled or unscheduled maintenance

individual or team-related activities

complex testing and adjusting of components, and where this is undertaken, may be carried out under supervision at the appropriate level

Procedures and requirements

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

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 
System 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 correctly identified and documented 
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 
System component faults are located and the causes of the faults are clearly identified 
Fault rectification requirements are determined to assist in planning the repair 
System component parts are dismantled in accordance with maintenance manuals 
Component parts are assessed for serviceability in accordance with the relevant maintenance documentation 
Parts requiring specialist repair are tagged and repair instructions are accurately specified 
Parts lists are compiled and processed in accordance with standard enterprise procedures 
System 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 
Assembly of component parts is carried out within specified tolerances and in accordance with the appropriate maintenance documents 
System components are adjusted or calibrated to operate within prescribed specifications 
Finished components are tagged, sealed and packaged in accordance with specified procedures 
Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures 

Forms

Assessment Cover Sheet

MEA287A - Repair or overhaul aircraft oxygen 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

MEA287A - Repair or overhaul aircraft oxygen 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: