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Elements and Performance Criteria

1. Maintain restraint belts/harnesses
   • Restraint belts/harnesses are inspected for serviceability in accordance with standard procedures
   • Identified faults beyond own authority to rectify are reported to supervisor and faulty restraint system is quarantined
   • Unserviceable parts of a quick release fitting are inspected, tested and replaced
   • Unserviceable parts of the restraint belts/harnesses are replaced to render restraint system serviceable in accordance with standard 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)
   • Basic restraint belt/harness stitching repairs are completed in accordance with standard procedures
   • Restraint belts/harnesses are cleaned in accordance with standard procedures
   • Restraint belts/harnesses are presented for inspection by supervisor in accordance with standard procedures
   • Maintenance documentation is completed and processed in accordance with standard enterprise procedures
2. Remove restraint systems
   • Approval to remove restraint system is obtained in accordance with standard enterprise procedures
   • Restraint system is removed from the aircraft in accordance with applicable maintenance publication
   • Maintenance documentation is completed and processed in accordance with standard enterprise procedures
3. Install restraint systems
   • Approval to fit restraint system is obtained in accordance with standard enterprise procedures
   • Restraint system is fitted to the aircraft in accordance with applicable maintenance publication
   • Maintenance documentation is completed and processed in accordance with standard enterprise procedures

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.
Restraint belts/harnesses include:	Fixed point attached harness Passenger restraint belts Retractable restraint harnesses (will be attached to inertia reel but the inertia reel does not form part of the restraint system)
Standard procedures are found in any or all of:	Commonwealth/state/territory WHS legislation, regulations and codes Australian Standards Equipment manufacturers’ specifications and procedures Industry practices Safety manuals Maintenance schedules Work instructions Maintenance organisation manuals MSDS Defence regulations and instructions Civil Aviation Safety Regulations (CASRs) and advisory material Standing instructions
Faults include:	Broken quick release fitting springs Broken stitching Contamination Corrosion of metal parts Damaged hardware Damaged quick release fitting screws Excessive wear Expired date of restraint components Incorrect manufacture Pulled threads Seized quick release fitting lugs Ultraviolet (UV) degradation
Parts include:	Belt Fixed point attachment line Hardware (e.g. buckles) Harness Parachute housing (e.g. pack) Quick release fittings including lugs, springs and screws

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Performance Evidence

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 WHS practices relating to restraint system maintenance processes, including the selection and correct use of PPE, where applicable

handling, storing and organising transport of equipment

using MSDS

using maintenance publications, drawings and documentation relating to restraint system maintenance

using applicable testing and measuring equipment, tools and maintenance documentation to:

replace unserviceable components in accordance with approved procedures

select and use appropriate restraint system cleaning materials

repair restraint systems (both hand and machine sewing)

cleaning and maintenance of equipment and tools.

The underlying skills inherent in this unit should be transferable across a range of aircraft life support equipment maintenance activities. It is essential that restraint system inspection procedures, cleanliness requirements, repair procedures and safety precautions are fully observed, understood and complied with. Ability to interpret maintenance, installation and removal procedures and apply them in practice is critical.

This is to be demonstrated through demonstration of the ability to recognise faults, replace components and perform appropriate repairs that are within the bounds of the individual’s authority, and through the demonstration of correct installation and removal procedures.

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Knowledge Evidence

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:

relevant regulations, standards, enterprise procedures and maintenance publications

WHS procedures relating to restraint system maintenance, including the selection and use of PPE

how to obtain MSDS

critical nature of maintaining and fitting restraint systems

approved cleaning methods for aviation life support equipment

components of a restraint system and their function

flight line procedures

ultraviolet (UV) degradation

types of corrosion and contamination that may affect restraint systems

handling, storage and transit procedures relating to life support equipment

modification requirements for restraint systems

operation of testing and measuring equipment and tools used to maintain restraint systems

repair limitations for restraint systems.

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