MEA419
Inspect and repair/modify aircraft cabin/cockpit non-primary structure components


Application

This unit of competency requires application of hand skills and the use of maintenance publications to inspect for damage and repair aircraft non-primary structure metallic and non-metallic components of fixed and rotary wing aircraft cabins and cockpits during the performance of scheduled or unscheduled maintenance. Work may be performed individually or as part of a team.

This unit is part of the Aeroskills Life Support and Furnishing Certificate III and IV training pathways.

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).


Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Inspect for damage to aircraft cabin/cockpit non-primary structure metallic and non-metallic components

1.1

Metallic and/or non-metallic components are visually inspected for damage

1.2

Extent of damage is determined and confirmed to be within repair limits

2.

Prepare to perform routine repairs and minor modifications to aircraft cabin/cockpit non-primary structure metallic and non-metallic components

2.1

Applicable metallic or non-metallic repair scheme is determined in accordance with applicable maintenance documentation and standard enterprise procedures

2.2

Modification instructions are obtained in accordance with standard enterprise procedures

2.3

All required materials and equipment are selected and organised in accordance with enterprise procedures and maintenance documentation

3.

Perform routine repairs and minor modifications to aircraft cabin/cockpit non-primary structure metallic components

3.1

Metallic component repairs and minor modifications are performed in accordance with approved repair scheme or modification instructions, ensuring that aircraft standard practices are used and standard process requirements are carried out 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

Work area is cleaned of all waste material

3.3

Minor adjustments are made, where necessary, for components to operate within prescribed specifications

4.

Perform routine repairs and minor modifications to aircraft cabin/cockpit non-primary structure non-metallic components

4.1

Non-metallic component repairs and minor modifications are performed in accordance with approved repair scheme or modification instructions, ensuring that aircraft standard practices are used and standard process requirements are carried out while observing all relevant while observing all relevant WHS requirements, including the use of MSDS and items of PPE

4.2

Work area is cleaned of all waste material

4.3

Minor adjustments are made, where necessary, for components to operate within prescribed specifications

5.

Complete routine repair and minor modification activities

5.1

Required documentation is accurately completed and correctly processed in accordance with standard enterprise procedures

5.2

Repaired components or assemblies are tagged, sealed and packaged or cradled in accordance with specified procedures, where required

Evidence of Performance

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

applying relevant WHS practices, including the use of MSDS and the selection and use of applicable items of PPE

using enterprise procedures, approved maintenance documentation and aircraft publications relating to cabin/cockpit non-primary structure metallic and non-metallic components

identifying aircraft cabin/cockpit non-primary structure components and their basic properties by interpretation of markings, numbering systems or visual, chemical or mechanical means

handling and storing aircraft metallic and non-metallic components, including sealing agents, to industry standards

identifying aircraft assembly fasteners by interpretation of markings, numbering systems, size, shape and colour

visually inspecting metallic and non-metallic components for damage

correctly interpreting, in accordance with enterprise procedures, applicable repair scheme/modification drawings and hand sketches

using appropriate hand tools and machines to remove and assemble aircraft cabin/cockpit non-primary structure metallic and non-metallic components

performing, in accordance with enterprise procedures, a range of routine non-primary structure sheet metal repair techniques, including metal scab patch repairs

performing, in accordance with enterprise procedures, a range of routine non-primary structure non-metallic repair techniques

applying corrosion removal/treatment techniques

restoring sealing and surface finishes.

The underlying skills inherent in this unit should be transferable into other areas that require similar techniques. It is essential that procedures take into account all safety precautions and quality requirements, standards and practices, and processes associated with assembly.

Evidence of knowledge about enterprise procedures relating to routine basic repair techniques and the use of the standard repair manual/practices in a range of situations will be necessary to supplement evidence of ability to plan and undertake component repair.


Evidence of Knowledge

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

applicable WHS procedures, including how to obtain MSDS

selection and use of applicable items of PPE

construction methods used and assessment of common defects in aircraft crew and passenger seats, and in interior trim panels including sidewalls, galleys, furnishings and partitions, passenger modules/pods, toilets, roof panels, overhead luggage stowage bins, non-structural floor panels and cargo compartment lining

types of deterioration and damage

inspection methods

identification and interpretation of metallic and non-metallic repair schemes applicable to cabin/cockpit non-primary structural components

the various forms of corrosion

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 Conditions

Competency should be assessed in the work environment or simulated work environment, using tools and equipment specified by aircraft maintenance manuals. It is also expected that general-purpose tools, test and ground support equipment found in most routine situations would be used where appropriate.

The following conditions of assessment represent the requirements of the Regulators (ADF and CASA) and maintenance stakeholders and must be rigorously observed.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements and performance criteria of the unit of competency are being achieved on a representative range of components, inspecting for damage and performing repair tasks, as follows:

metallic component repairs involving:

removing corrosion by chemical and mechanical methods

restoring protective coatings

freehand precision hole generation

removing and installing fastening devices

fitting patches to cabin/cockpit non-primary structure sheet metal components

non-metallic component repairs involving:

composite patch, scarf and stepped repairs using fibreglass, sandwich honeycomb, nylon, Perspex, nomex core materials and matrix resins.

This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide (for details refer to the Companion Volume Assessment Guidelines).

Assessors must satisfy the requirements of the National Vocational Education and Training Regulator (Australian Skills Quality Authority, or its successors).


Foundation Skills

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


Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Metallic and non-metallic components include:

Aircraft crew and passenger seats

Interior trim panels, including sidewalls, galleys, furnishings and partitions, passenger modules/pods, toilets, roof panels, overhead luggage stowage bins, non-structural floor panels and cargo compartment lining

Types of damage include:

Corrosion, cracking and impact damage to metallic components

Delamination, cracking and impact damage to non-metallic components

Metallic component repairs include:

Removing corrosion by chemical and mechanical methods

Restoring protective coatings

Freehand precision hole generation

Removing and installing fastening devices

Fitting patches to cabin/cockpit non-primary structure sheet metal components

Non-metallic component repairs include:

Composite patch, scarf and stepped repairs using fibreglass, sandwich honeycomb, nylon, Perspex, nomex core materials and matrix resins

Primary structure includes:

All components of an aircraft, the failure of which would seriously endanger safety. In the fuselage this includes frames, longerons and stringers, structural floor panels and all additional parts of the pressure hull, such as skin, windows, doors and bulkheads

Procedures and requirements include:

Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise


Sectors


Competency Field

Aviation maintenance