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Elements and Performance Criteria

1. Remove propellers and components
   • System is rendered safe and prepared in accordance with relevant aircraft publications/maintenance regulations/orders and standards and practices
   • Isolation and warning signs are installed/fitted to ensure personnel safety and freedom from damage during component removal
   • Propeller system component removal is carried out in accordance with relevant aircraft publications/maintenance regulations/orders and standards and practices 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)
   • Required aircraft maintenance documentation is accurately completed and correctly processed
   • Removed components are labelled, sealed and packaged in accordance with relevant aircraft publications/maintenance regulations/orders and standards and practices
2. Install propellers and components
   • Propeller system components to be installed are checked to confirm correct part numbers, serviceability and modification status
   • Component installation is carried out in accordance with relevant aircraft publications/maintenance regulations/orders and standards and practices while observing all relevant WHS requirements, including the use of MSDS and items of PPE
   • Support/safety equipment is removed at an appropriate time to ensure personnel safety and freedom from structural damage
   • Required aircraft 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.
Propeller system components include:	Propellers, including spinners, where fitted Constant speed, feathering and reversing propeller drives Beta control systems and governors Controls and linkages De-ice/anti-ice equipment (where applicable to the enterprise)
Procedures and requirements include:	Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

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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 relevant WHS practices, including lifting and handling heavy components

using MSDS and PPE

using relevant maintenance documentation and aircraft manuals to:

correctly remove and install propellers and related components, such as spinners

locate and correctly remove and install pitch control system components

locate and correctly remove and install propeller de-icing system components (where applicable to the enterprise)

identifying requirements for adjustment and rigging of systems and controls.

It is essential that shoring, trestling and lifting requirements and safety precautions applicable to propeller system maintenance are fully observed, understood and complied with, and that an awareness is demonstrated of dual inspection requirements.

Evidence of transferability of skills and knowledge related to removal and installation is essential. This may be demonstrated through application across a representative range of propeller system components as listed in the Assessment Conditions.

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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:

propeller attachment methods and removal and installation procedures

propeller system component attachment methods for:

spinners

governors

beta control systems

de-ice and anti-ice systems

controls and control linkages including the requirement for rigging and for independent inspection of work performed

electrical circuit isolation, plug removal and installation

relevant WHS practices, including those relating to lifting and handling of heavy items

relevant maintenance manuals

relevant regulatory requirements and standard procedures.

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