Unit of competency Outline

Date retreived
22/07/2026 4:12 PM AWST

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Pre-treat aluminium alloy surfaces

Pre-treat aluminium alloy surfaces

Unit of competency
National Code
MEA412
State Code
AUD93
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
2.00
Current Release Date
31/08/2018
View on TGA
State Implementation and Classification
Approved Date
22/07/2015
Field of Education
031503 - Aircraft Maintenance Engineering
Original Release Date
22/07/2015
Nominal Hours
40
Description
This unit of competency requires application of skills and knowledge relating to the application of chemical conversion coatings to aluminium alloy surfaces of fixed and rotary wing aircraft and aircraft components with aluminium alloy surfaces during the performance of scheduled or unscheduled maintenance. Work may be performed individually or as part of a team.No licensing requirements apply to this unit at the time of publication, but requirements for compliance with legislation and regulations for the handling and disposal of hazardous materials is included in the unit.The unit is used in workplaces that operate under the airworthiness regulatory systems of the Australian Defence Force (ADF) and the Civil Aviation Safety Authority (CASA).
Notes
Elements and Performance Criteria
1. Prepare surfaces for application of chemical conversion coating
  • 1.1 The required pre-treatment task is identified from maintenance documentation and enterprise procedures
  • 1.2 Enterprise procedures and/or process specifications are used to identify required materials and tools
  • 1.3 Aircraft or component identification is matched with relevant maintenance documentation
  • 1.4 Work health and safety (WHS) requirements are identified and complied with and personal protective equipment (PPE) is checked for correct fit and function
  • 1.5 Common surface soils are removed in accordance with enterprise procedures and/or process specifications
  • 1.6 Masking is completed on areas where pre-treatment is not required
  • 1.7 Aluminium alloy substrate is prepared for application of conversion coating in accordance with enterprise procedures and/or process specifications
2. Apply chemical conversion coating
  • 2.1 The correct environment for conversion coating application is established and maintained
  • 2.2 The applicable chemical conversion coating is applied while observing all relevant WHS requirements, including the use of material safety data sheets (MSDS) and items of PPE
  • 2.3 Masking is removed and the aircraft or component is left in a suitable condition for the next task
  • 2.4 Completion of the pre-treatment process is documented in accordance with enterprise procedures
3. Clean up work area and maintain equipment
  • 3.1 Material that can be reused is collected and correctly stored
  • 3.2 Waste material is removed and disposed of or stored in accordance with legislative, regulatory and enterprise procedures
  • 3.3 Equipment is cleaned in accordance with enterprise procedures or manufacturer’s instructions while observing all relevant WHS requirements, including the use of MSDS and items of PPE
  • 3.4 Equipment is checked for serviceability and unserviceable items are dealt with in accordance with enterprise procedures
  • 3.5 Tools are cleaned and maintained in accordance with enterprise procedures
  • 3.6 Work area is cleaned and inspected for serviceable condition
No information
No information
Replaces
State Code National Code Title Type
W8460 MEA412A Pre-treat aluminium alloy surfaces Unit of competency
Replaced By
State Code National Code Title Type
OEH58 MEASTR0007 Pre-treat aluminium alloy surfaces Unit of competency