Application
This unit requires application of skills and knowledge relating to the removal of light corrosion from the surfaces of aircraft structure. Applications include fixed and rotary wing aircraft. |
Prerequisites
Interpret occupational health and safety practices in aviation maintenance | |
Plan and organise aviation maintenance work activity | |
Apply quality standards applicable to aviation maintenance processes | |
Interpret and use aviation maintenance industry manuals and specifications | |
Complete aviation maintenance industry documentation | |
Perform basic hand skills, standard trade practices and fundamentals in aviation maintenance |
Elements and Performance Criteria
1. Identify corrosion damage | 1.1. Signs of corrosion are identified through visual inspection 1.2. The type of corrosion is identified 1.3. The severity of corrosion damage is determined and damage more severe than light surface corrosion is documented and reported in accordance with standard enterprise procedures |
2. Remove light corrosion | 2.1. The applicable corrosion removal method is selected in accordance with enterprise procedures 2.2. OHS requirements are identified and complied with and PPE is checked for correct fit and function 2.3. Materials and tools required for corrosion removal are assembled 2.4. Surface is prepared and corrosion removed using the selected removal method |
3. Clean area and equipment | 3.1. Surface is cleaned of all chemical residue and mechanical media, in accordance with enterprise procedures, ready for the next process 3.2. Equipment is cleaned in accordance with enterprise procedures or manufacturer's instructions 3.3. Equipment is checked for serviceability and unserviceable items are dealt with in accordance with enterprise procedures 3.4. Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures 3.5. Documentation is completed in accordance with standard enterprise procedures |
Required Skills
Required skills |
Look for evidence that confirms skills in: applying OHS procedures relating to light corrosion removal, including the selection and correct use of PPE recognising types of corrosion and damage that exceeds light surface corrosion applying enterprise procedures for removal of light corrosion selecting and using applicable corrosion removal methods, equipment and tools using MSDS cleaning surfaces following corrosion 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 how to obtain MSDS types of chemicals used for corrosion removal and methods of application mechanical methods that can be used for corrosion removal cleaning methods following corrosion 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 light corrosion from the surfaces of aircraft structure 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 tasks involving the removal of light corrosion damage from the surfaces of aircraft structure. 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 corrosion removal procedures and apply them in practice is critical. Evidence of transferability of skills and knowledge related to the removal of light corrosion is essential. This is to be demonstrated through corrosion removal using mechanical, manual and chemical means across a range of aircraft 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 light corrosion removal tasks using applicable mechanical, manual and chemical removal methods 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 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 |
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 |
Signs of corrosion | Signs of corrosion may include: surface deformed paint blistered or flaked powder discolouration |
Types of corrosion | The type of corrosion may be: uniform etch pitting intergranular exfoliation filiform galvanic |
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: micro grinder sanders plastic media blasting equipment abrasive pads wet/dry abrasive papers chemicals PPE applicable to task |
Selected removal methods | Selected removal methods may include: light mechanical using micro grinder, sander or plastic media blasting manual removal using wet/dry abrasive papers or abrasive pads chemical |
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 |
Sectors
Aviation maintenance
Co-Requisites
Not applicable
Employability Skills
This unit contains employability skills. |
Licensing Information
Not applicable.