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Elements and Performance Criteria

1. Identify the appropriate coating removal method
   • The coating removal task is identified from maintenance documentation and enterprise procedures
   • Enterprise procedures and maintenance publications are used to identify materials and tools to be used for coating removal
   • Aircraft or component identification is matched with relevant maintenance documentation
2. Prepare for coating removal
   • OHS requirements are identified and complied with and PPE is checked for correct fit and function
   • Materials and tools required for coating removal are assembled
   • Appropriate preparation for access to the aircraft is undertaken
   • Masking requirements are determined using enterprise procedures and maintenance publications
   • Masking is applied to relevant areas and sensitive components
   • Environmental requirements are observed during the coating removal process
3. Remove coating
   • Chemical strippers are applied in accordance with relevant procedures
   • Mechanical coating removal is performed in accordance with enterprise procedures and maintenance manuals
   • Surfaces are cleaned of all chemical residue and mechanical media in accordance with enterprise procedures and maintenance manuals
   • Masking materials are removed and final cleaning of surfaces is performed
4. Clean up work area and maintain equipment
   • Material that can be reused is collected and correctly stored
   • Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures
   • 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
   • Tools are cleaned and maintained in accordance with enterprise procedures
   • Work area is cleaned and inspected for serviceable condition

Required Skills

Required skills

Look for evidence that confirms skills in applying OHS procedures relating to coating removal including the selection and correct use of PPE selecting and applying masking and barrier materials selecting and using chemical strippers using MSDS selecting and using applicable mechanical coating removal methods cleaning of surfaces following coating removal correctly disposing of waste materials cleaning and maintaining equipment and tools

Required knowledge

Look for evidence that confirms knowledge of relevant enterprise procedures and maintenance publications OHS procedures relating to the removal of aerospace coatings including PPE and fume extraction how to obtain MSDS types of chemicals used for coating removal and methods of application mechanical methods that can be used for coating removal types of masking and barrier materials cleaning methods following coating removal environmental legislation and regulations relating to the storage use and disposal of hazardous materials

Evidence Required

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 remove surface coatings from aircraft and aircraft components 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 coating removal tasks associated with aircraft and aircraft components It is essential that system testing procedures 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 coating removal procedures and apply them in practice is critical Evidence of transferability of skills and knowledge related to coating removal is essential This is to be demonstrated through application of chemical and mechanical coating removal processes 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 coating removal 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

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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.
	Application of this unit may relate to: scheduled or unscheduled maintenance individual or team-related activities
Procedures and requirements	Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise
OHS requirements	OHS requirements are identified from relevant: state/territory/Commonwealth OHS legislation, regulations and codes procedures manual safety manual work instructions maintenance organisation manual MSDS Defence regulations and instructions standing instructions
Materials and tools	Materials and tools may include: masking tapes and barrier materials chemicals abrasives grinders scrapers paint stripper application pumps blasting equipment cleaning material
Environmental requirements	Environmental requirements may relate to: noise dust fume extraction clean-up management
Legislative, regulatory and enterprise procedures	Legislative, regulatory and enterprise procedures may include: state/territory/Commonwealth environmental legislation, regulations and codes for the storage and disposal of hazardous and toxic materials MSDS maintenance organisation manual procedures manual work instructions relevant Defence regulations and instructions standing instructions

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