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Evidence Guide: MEA405B - Repair_modify aircraft composite material structure_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!

From the Wiki University

 

MEA405B - Repair_modify aircraft composite material structure_components

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

Plan repair/modification

  1. Extent of damage is correctly assessed to assist in determining repair procedure
  2. Structure is supported and prepared in accordance with the applicable maintenance manual to ensure personnel safety and freedom from damage
  3. Appropriate modification or repair scheme is identified in accordance with structural repair manual and/or approved data
  4. Specialist advice is obtained in establishing an approved repair scheme where a standard repair scheme cannot be identified or damage criteria is out of limits
  5. All materials and equipment required are organised
Extent of damage is correctly assessed to assist in determining repair procedure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Structure is supported and prepared in accordance with the applicable maintenance manual to ensure personnel safety and freedom from damage

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Appropriate modification or repair scheme is identified in accordance with structural repair manual and/or approved data

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Specialist advice is obtained in establishing an approved repair scheme where a standard repair scheme cannot be identified or damage criteria is out of limits

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

All materials and equipment required are organised

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare components for hot bonding

  1. Components are prepared in accordance with applicable process specification
  2. Bagging is checked to ensure vacuum seal is correct
  3. Temperature probes are placed appropriately to provide accurate measurement
  4. Equipment is checked for serviceability to ensure safety in application
  5. Heat blanket is laid on component or repair in a manner that ensures even temperature distribution
Components are prepared in accordance with applicable process specification

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Bagging is checked to ensure vacuum seal is correct

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Temperature probes are placed appropriately to provide accurate measurement

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Equipment is checked for serviceability to ensure safety in application

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Heat blanket is laid on component or repair in a manner that ensures even temperature distribution

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair/modify components using hot bond

  1. Hot bonding equipment is operated in accordance with equipment manufacturer's procedures
  2. Vacuum and temperature recordings are monitored, including checking of hot and cold spots on trailing and leading temperature probes, to ensure specifications are met
  3. Curing cycle and recording of operating cycle data are monitored as required by approved procedures to ensure specifications are met
  4. Blemishes are sealed, potted or filled, where necessary, in accordance with applicable process specification
  5. Component assemblies, including test pieces, requiring further or special treatment are made ready for the appropriate processes
  6. Required maintenance documentation is accurately completed and correctly processed
  7. Completed assemblies are tagged, sealed or packaged, as required
Hot bonding equipment is operated in accordance with equipment manufacturer's procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Vacuum and temperature recordings are monitored, including checking of hot and cold spots on trailing and leading temperature probes, to ensure specifications are met

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Curing cycle and recording of operating cycle data are monitored as required by approved procedures to ensure specifications are met

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Blemishes are sealed, potted or filled, where necessary, in accordance with applicable process specification

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Component assemblies, including test pieces, requiring further or special treatment are made ready for the appropriate processes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Required maintenance documentation is accurately completed and correctly processed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Completed assemblies are tagged, sealed or packaged, as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Repair/modify components using cold cure

  1. Lay-up of materials is checked to confirm that components meet required specifications
  2. Curing cycle is regularly monitored to ensure required specifications are met
  3. Components are checked for blemishes or delamination in accordance with quality procedures
  4. Component assemblies requiring further or special treatment are made ready for the appropriate processes
  5. Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
  6. Completed assemblies are tagged, sealed or packaged, as required
Lay-up of materials is checked to confirm that components meet required specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Curing cycle is regularly monitored to ensure required specifications are met

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Components are checked for blemishes or delamination in accordance with quality procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Component assemblies requiring further or special treatment are made ready for the appropriate processes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Required maintenance documentation is completed and processed in accordance with standard enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Completed assemblies are tagged, sealed or packaged, as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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 apply hand skills and use maintenance publications, applicable materials, tools and methods to repair aircraft composite material structure and components while applying all relevant safety procedures.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The underlying skills inherent in this unit should be transferable across the range of different material applications and curing requirements. It is essential that specific aspects of the laying up and curing process for aircraft composite materials are checked to ensure quality and safety standards are achieved in this area. Correct checking and wearing of safety protective clothing is critical, particularly in the hot bonding process.

Evidence of knowledge about repair techniques and the use of the standard repair manual in a range of different repair situations will be necessary to supplement evidence of ability to plan and undertake component repair. Ability to apply different materials and curing cycles, including composite to composite and composite to metal components, will be necessary to indicate competency in preparing and curing composite materials.

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 using materials from each of Groups 1 to 3 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 workplace or simulated workplace. It is also expected that general purpose tools and test equipment found in most routine situations would be used where appropriate.

Method of assessment

Guidance information for assessment

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

applying relevant OHS procedures, including the use of MSDS and PPE

using approved maintenance documentation and aircraft publications relating to aircraft structure

identifying composite component applications in aircraft structures

identifying various aircraft composite materials/resins and their basic properties by interpretation of markings and visual means

handling and storing of composite materials to industry standards

assessing composite component damage using visual and tap test methods

performing composite component repairs using:

external patch repair

scarf repair

stepped repair

wet lay up repair

composite fastener hole repair

metal to metal and metal to composite bonding

correctly interpreting and/or producing repair scheme/modification drawings/sketches.

using appropriate hand tools and machines to disassemble and assemble aircraft composite components, parts, sections and skin, including extraction/installation equipment, drilling/cutting equipment and material fasteners

Required knowledge

Look for evidence that confirms knowledge of:

how to obtain relevant MSDS

the use of applicable items of PPE

OHS procedures

aircraft construction principles

defining composite terminology

describing composite component construction methods including structural assembly fastener identification

Range Statement

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

Applicable materials and methods

Applicable materials/methods include:

1. Pre-preg materials hot cure (performed on one of carbon graphite, kevlar, fibreglass or aluminium)

2. Cold cure or wet lay-up (using either fibreglass or carbon graphite)

3. Core materials (using one of aluminium, nomex or foam)

Application of this unit may relate to:

scheduled or unscheduled maintenance activities

individual or team-related activities

Procedures and requirements

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