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MEA339 — Inspect, repair and maintain aircraft structures

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What an assessment for MEA339 must cover

81 assessable components: 3 elements (13 performance criteria), 24 performance evidence and 43 knowledge evidence requirements, plus 1 foundation skills. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Inspect aircraft structure

  • 1.1Relevant maintenance documentation is used to identify specific inspection requirements
  • 1.2Appropriate preparation and access to the aircraft structure is undertaken to allow for proper inspection in accordance with maintenance documentation
  • 1.3Aircraft structure is visually or physically checked for signs of deformation defects or damage in accordance with maintenance documentation and approved procedures 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)
  • 1.4Damage or defects are assessed against damage or wear limits specified by structural repair manual or other approved data to determine if repair or replacement is required
  • 1.5Maintenance documentation is completed and processed in accordance with standard enterprise procedures

2 Prepare to undertake repair

  • 2.1Extent of damage is correctly assessed to assist in determining repair procedure
  • 2.2Appropriate repair scheme is identified in accordance with structural repair manual and/or approved data
  • 2.3Specialist advice is obtained in establishing an approved repair scheme where a standard repair scheme cannot be identified or damage is out of limits
  • 2.4All materials and equipment required are organised

3 Repair and maintain aircraft structure

  • 3.1Structural repairs are performed in accordance with approved repair scheme ensuring that aircraft standard practices are used and process requirements are carried out while observing all relevant WHS requirements, including the use of MSDS and items of PPE
  • 3.2Preventative maintenance techniques are employed to preserve the integrity of aircraft structure
  • 3.3Work area is cleaned of all waste material or contaminants
  • 3.4Required maintenance documentation is completed and processed in accordance with standard enterprise procedures

Performance evidence

  • applying all relevant WHS procedures, including the use of MSDS and selection and use of applicable items of PPE
  • demonstrating appropriate cleaning procedures to enable structure inspection
  • demonstrating correct inspection procedures, in particular pressurised aircraft, in accordance with aircraft and procedures manuals
  • identifying damage to aircraft metallic (ferrous and non-ferrous) structures and/or components by way of impact, fatigue or the various types of corrosion
  • inspecting damage and assessing composite components/structures
  • identifying various aircraft metals and their basic properties
  • identifying composite materials used in aircraft construction, associated safety precautions and hazards
  • correctly interpreting repair scheme drawings, including third angle projection, isometric, sectional formats and hand sketches
  • using appropriate hand tools and machines, including riveting equipment, drilling equipment, aligning tools and material fasteners (grip pins)
  • applying correct removal, installation and repair techniques for:
  • a range of rivets (blind and solid) using hand, squeeze and pneumatic situations
  • a range of close tolerance fasteners (standard and oversize – hillocks and taper locks), including hole preparation
  • threaded devices, including internal and external thread cutting, Helicoil inserts and damaged stud replacement
  • hardware assembled by close tolerance fits using heat, cooling and force methods, including bearings, bushes and inserts
  • performing a range of metal structure and composite material repair techniques, including:
  • metal scab patch, flush, splice, lap and formed section repair
  • composite external patch, scarf and stepped repairs
  • bolted repairs to composite skin
  • metal to metal and metal to composite bonding
  • applying structural corrosion removal/treatment techniques
  • restoring aircraft structure sealing and surface finishes.
  • It is essential that the procedures take into account all aircraft and personal safety precautions relating to aircraft structure.
  • Evidence of transferability of skills and knowledge related to inspection, testing and repair of aircraft structure is essential. This shall be demonstrated through application across a number of different aircraft components as listed in the Assessment Conditions.
  • Ability to interpret inspection and repair procedures and specifications and apply them in practice is critical. The application of the procedures should also clearly indicate knowledge of structural flight loads and aerodynamic requirements.

Knowledge evidence

  • applicable WHS procedures, including the use of MSDS and PPE
  • construction methods and materials used in:
  • fuselage sections
  • wing sections
  • engine nacelles and mounts
  • windows and window frames
  • doors, locks and access panels in pressurised and non-pressurised aircraft
  • definition of structural terms, i.e. safe life, damage tolerant, failsafe, stress, strain, shear and cycles
  • inspection requirements for metal and composite structure, including:
  • ageing aircraft inspection requirements
  • safe life structure
  • damage tolerant structure
  • fail safe structure
  • potential causes of structural failure
  • NDT methods and application of the various techniques
  • construction methods of, and assessing common defects in, aircraft plastic transparencies
  • basic constructional features of, and assessing common defects in, glass windscreens
  • the various forms of structural corrosion, stating the causes and structural effects of corrosion on aircraft
  • the terms associated with composite materials
  • requirements for handling and storing aircraft metals and composite materials, including sealing agents, to industry standards
  • means of identifying aircraft structural assembly fasteners (metal and composite) by interpretation of markings, numbering systems, size, shape and colour
  • assessment of structural damage:
  • types and classes of mechanical damage
  • types of corrosion and determining the extent of damage
  • relevant documentation and manuals
  • damage limits and repair schemes for metallic and non-metallic structure
  • procedures for the fabrication and fitment of metal repairs:
  • scab patch
  • flush patch
  • splice
  • lap
  • formed section
  • corrosion removal and passivation
  • procedures for performing composite repairs:
  • external patch
  • scarf patch
  • stepped repairs
  • bolted repairs
  • repair of integral fuel tanks and sealing of faying surfaces, including specific WHS and PPE requirements
  • surface finishes and methods of restoration, including specific WHS and PPE requirements
  • how to obtain MSDS
  • relevant maintenance and structural repair manuals
  • relevant regulatory requirements and standard procedures.

Foundation skills

  • Foundation skills: Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing MEA339

What does an assessment tool for MEA339 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for MEA339 needs to address all 81 unit components: 3 elements with 13 performance criteria, 24 performance evidence requirements, 43 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for MEA339?

Auditori pulls the current release of MEA339 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for MEA339 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing MEA339 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of MEA339, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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