Unit of competency Outline

Date retreived
23/07/2026 9:52 AM AWST

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Aircraft structure major disassembly and reassembly

Aircraft structure major disassembly and reassembly

Unit of competency
National Code
MEA423
State Code
AUG02
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
2.00
Current Release Date
17/11/2015
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
80
Description
This unit of competency requires application of hand skills and use of maintenance publications, drawings, and appropriate jigs, fixtures and tools to disassemble and reassemble aircraft structure during scheduled or unscheduled maintenance. Structural repair/modification is covered by MEA422 Repair/modify aircraft metal structure or MEA405 Repair/modify aircraft composite material structure/components. Where fabrication of replacement components is required the applicable units are MEA420 Fabricate basic structural components for aircraft and MEA421 Fabricate advanced structural components for aircraft.Work may be performed individually or as part of a team.Applications include fixed and rotary wing aircraft.This unit of competency is part of the Aeroskills Structures Maintenance Certificate IV training pathway. It 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. Interpret specifications and organise materials
  • 1.1 The procedure for assembly/disassembly of structure is determined in order to plan equipment use
  • 1.2 Appropriate jigs, fixtures or bracing methods are selected to ensure maintenance of contour/structural integrity during disassembly/assembly operations
  • 1.3 All components and equipment are organised
2. Prepare aircraft or sub-assembly for structural disassembly
  • 2.1 Structure is supported with appropriate jigs, fixtures or bracing, as required
  • 2.2 Structural components are removed, as required, to provide access
3. Disassemble aircraft structure or sub-assembly
  • 3.1 Aircraft standard practices are applied in the removal of structural hardware and fasteners while observing all relevant work health and safety (WHS) requirements, including the use of material safety data sheets (MSDS) and items of personal protective equipment (PPE)
  • 3.2 Disassembled components are tagged, as required, to facilitate correct reassembly
4. Prepare components and tooling for assembly
  • 4.1 Jigs and fixtures are set up to ensure accuracy of component assembly
  • 4.2 Replacement component alignment is checked for conformance to specifications prior to fastener hole generation
  • 4.3 Hole location/relocation is carried out in accordance with specification procedures and standard practices
  • 4.4 Standard practices in hole generation sequencing are followed to ensure that assembly stress defects are not built in
  • 4.5 Components are disassembled, cleaned, deburred and surface treatments applied prior to final assembly while observing all relevant WHS requirements, including the use of MSDS and items of PPE
5. Assemble aircraft structure or sub-assembly
  • 5.1 Sealants and/or adhesives are selected and applied in accordance with assembly specifications or applicable documentation while observing all relevant WHS requirements, including the use of MSDS and items of PPE
  • 5.2 Components are positioned and secured with appropriate temporary fastening devices for accurate assembly
  • 5.3 Fasteners are selected and installed in accordance with assembly specifications or applicable manuals
6. Inspect completed assemblies
  • 6.1 Assembled components are inspected to confirm dimensional accuracy and specifications are met
  • 6.2 Checking or testing equipment is used, where appropriate, to ensure requirements are met
  • 6.3 Aircraft mensuration is checked for compliance with applicable maintenance manuals, where necessary
  • 6.6 Required documentation is completed and processed in accordance with standard enterprise procedures
No information
No information
Replaces
State Code National Code Title Type
WC036 MEA423A Aircraft structure major disassembly and reassembly Unit of competency
Replaced By
State Code National Code Title Type
OEH76 MEASTR0017 Perform major disassembly and reassembly on aircraft structure Unit of competency
State Code National Code Title Type
BDX6 MEA41318 Certificate IV in Aeroskills (Structures) Qualification
AVN6 MEA41315 Certificate IV in Aeroskills (Structures) Qualification