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Elements and Performance Criteria

1. Prepare to undertake seam sealing
   • The seam sealing task is identified from maintenance documentation and enterprise procedures
   • Applicable enterprise procedures, process specifications and maintenance publications are used to identify materials and tools to be used for seam sealing
   • Aircraft or component identification is matched with relevant maintenance documentation
2. Prepare seams for application of sealant
   • OHS requirements are identified and complied with and PPE is checked for correct fit and function
   • Materials and tools required for sealant application are assembled
   • Masking is applied in accordance with enterprise procedures and/or process specifications
   • Seams are prepared for sealant application in accordance with enterprise procedures and/or process specifications
3. Mix sealant
   • Environment is established in accordance with enterprise procedures and/or process specifications
   • The applicable sealant is mixed in accordance with manufacturer's specifications
4. Apply sealant to seams
   • Sealant is applied in accordance with enterprise procedures and/or process specifications
   • The sealed seam is inspected and blemishes, voids or gaps are filled
   • Masking materials are removed
   • Waste and/or surplus materials are disposed of in accordance with legislative, regulatory and enterprise procedures
   • Documentation is completed in accordance with standard enterprise procedures
   • Aircraft or component, equipment and work area is left in a condition enabling the next task to begin

Required Skills

Required skills

Look for evidence that confirms skills in applying OHS procedures relating to seam sealing including the selection and correct use of PPE selecting and applying masking materials selecting mixing and applying applicable sealants using MSDS selecting and using applicable enterprise procedures andor process specifications correctly disposing of waste materials cleaning of work area and maintaining equipment and tools

Required knowledge

Look for evidence that confirms knowledge of relevant enterprise procedures process specifications and maintenance publications OHS procedures relating to seam sealing including the selection and use of PPE how to obtain MSDS types of sealants used for seam sealing types of masking materials 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 seal surface seams of 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 seam sealing tasks associated with surface seams of aircraft and aircraft components 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 seam sealing procedures and apply them in practice is critical Evidence of transferability of skills and knowledge related to seam sealing is essential This is to be demonstrated through application of sealant to surface seams 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 seam sealing 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:	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
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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