Assessment Requirements for MEAMEC0054 Modify and repair aircraft composite structure using cold bonding

Release: 1

Assessment Requirements for MEAMEC0054 Modify and repair aircraft composite structure using cold bonding

Modification History

Release 1. Application changed. Performance Criteria changed. Foundation Skills made explicit. Range of Conditions removed, and relevant information moved to Assessment Requirements. Assessment Requirements clarified. Supersedes and is equivalent to MEA367 Repair/modify aircraft composite structure using cold bonding.

Performance Evidence

There must be evidence the candidate has completed the tasks outlined in the elements and performance criteria of this unit, and demonstrated the ability to:

modify and repair aircraft composite structure during scheduled or unscheduled maintenance, while performing composite component repairs using cold cure adhesives on each of the following repair types:

external patch repair

scarf repair

stepped repair

wet lay-up repair

composite fastener hole repair

while conducting the above tasks:

use materials from each of:

cold cure or wet lay-up (using either fibreglass or carbon graphite)

core materials (using one of aluminium, Nomex or foam)

identify composite component applications in aircraft structures to inform selection of modification or repair scheme

identify various aircraft composite materials or resins and their basic properties by interpretation of markings and visual means to support damage assessment and inform selection of modification or repair scheme

handle and store composite materials to industry standards

correctly interpret and produce repair scheme or modification drawings or sketches

prior to and after repair, use appropriate hand tools and machines to disassemble and assemble aircraft composite components, parts, sections and skin, including extraction and installation equipment, drilling and cutting equipment, and material fasteners.

Ability to apply different materials and curing cycles, including composite to composite and composite to metal components, will be necessary to indicate competency in preparing and curing composite materials.

Knowledge Evidence

There must be evidence the candidate has knowledge of:

aircraft construction principles and the causes of structural damage, including metal fatigue and corrosion

structural fatigue preventative measures

composite terminology and materials used in both hot and cold bonding

composite component construction and repair methods, including structural assembly fastener types, specifications and identification

hand tools and machines used to disassemble and assemble aircraft composite components, parts, sections and skin, including extraction and installation equipment, drilling and cutting equipment, and material fasteners.

approved maintenance documentation and aircraft publications relating to aircraft structure

repair scheme or modification drawings and sketches

procedures for the design and approval of repair schemes and modifications

composite material handling and storage requirements

composite component visual and tap test methods

relative advantages and disadvantages of hot and cold cure

sealants used in aircraft structure and their application and handling

paints and finishes for composite structure

work health and safety (WHS) precautions associated with repair of aircraft structure

how to obtain and apply material safety data sheets (MSDSs)

selection and use of personal protective equipment (PPE) for repairing and modifying aircraft composite structure using cold bonding.

Candidates must be able to provide evidence of knowledge about repair techniques and the use of the standard repair manual in a range of different repair situations to supplement evidence of ability to plan and undertake component repair.

Assessment Conditions

The following conditions of assessment represent the requirements of the regulators Defence Aviation Safety Authority (DASA) and Civil Aviation Safety Authority (CASA) and maintenance stakeholders and must be rigorously observed.

Skills must have been demonstrated under routine supervision in the workplace or in a simulated environment that reflects workplace conditions and contingencies encountered in modifying and repairing aircraft composite structures using cold bonding. The following conditions must be met for this unit:

use of suitable facilities, equipment and resources, including:

workplace procedures, manufacturing specifications, codes, standards, manuals, and reference materials relevant to modifying and repairing aircraft composite structures using cold bonding

tools and equipment specified in maintenance documentation

general-purpose tools and test equipment found in most routine situations.

It is essential that specific aspects of the laying up and curing process for aircraft composite materials are checked to ensure quality and safety standards are achieved in this area.

Evidence of tasks demonstrating competency must be recorded in a log of industrial experience and achievement.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=ce216c9c-04d5-4b3b-9bcf-4e81d0950371