Required skills

Look for evidence that confirms skills in

applying OHS procedures relating to pretreatment of aluminium alloy substrates including the selection and correct use of PPE

applying masking

preparing for chemical conversion coating

water break testing

application of specified pretreatment process

water break retesting

using MSDS

selecting and using applicable chemical conversion coating

correctly disposing of waste materials

cleaning and maintaining equipment and tools

Required knowledge

Look for evidence that confirms knowledge of

relevant enterprise procedures andor process specifications

OHS procedures relating to aluminium alloy pretreatment processes including PPE

how to obtain MSDS

types of masking and barrier materials

types of pretreatment processes

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

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 pretreat aluminium alloy surfaces in accordance with specified procedures while using the correct PPE and observing all relevant safety precautions and environmental protection processes

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 pretreatment tasks associated with aircraft and aircraft component aluminium alloy surfaces 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 pretreatment procedures and apply them in practice is critical

Evidence of transferability of skills and knowledge related to pretreatment is essential This is to be demonstrated through application of conversion coatings to aluminium alloy surfaces across a range of aircraft and component tasks 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 on a representative range of pretreatment tasks 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 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

Method of assessment

Guidance information for assessment

Application of this unit may relate to:

Procedures and requirements

OHS requirements

Common surface soils

Legislative, regulatory and enterprise procedures