Assessment Requirements for MEAMEC0057 Repair the structure of non-pressurised small aircraft

Release: 1

Assessment Requirements for MEAMEC0057 Repair the structure of non-pressurised small aircraft

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 MEA370 Repair the structure of non-pressurised small aircraft.

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:

undertake one repair task from each of the following groups:

remove corrosion by chemical and mechanical methods

restore protective coatings

apply sealants and jointing compounds

generate a freehand precision hole

remove and install structural hardware and fastening devices

remove and replace bushes, bearings and bearing surfaces

metal scab patch, flush, splice, lap and formed section repair

composite external patch, scarf and stepped repairs

recognise each type of damage:

impact damage

fatigue cracking

corrosion

delamination of composites and bonded structures

identify various aircraft metals and their basic properties

correctly interpret repair scheme drawings, including third angle projection, isometric, sectional formats and hand sketches

use appropriate hand tools and machines, including riveting equipment, drilling equipment, aligning tools and material fasteners (grip pins)

apply 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

Knowledge Evidence

There must be evidence the candidate has knowledge of:

work health and safety (WHS) procedures, including the use of personal protective equipment (PPE) and material safety data sheets (MSDSs) relating to repair

requirements for handling and storing aircraft metals and composite materials, including sealing agents, to industry standards

structural flight loads and aerodynamic requirements

means of identifying aircraft structural assembly fasteners (metal and composite) by interpretation of markings, numbering systems, size, shape and colour

structural and non-structural component methods of attachment, faying surface treatment and fuel tank sealing

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 MSDSs

maintenance and structural repair manuals, including servicing schedules

regulatory requirements and standard procedures relating to 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 repairing the structure of non-pressurised small aircraft. 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 repairing the structure of non-pressurised small aircraft

tools and equipment specified in maintenance documentation

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

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