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Elements and Performance Criteria

1. Inspect advanced aircraft electrical systems and components
   • Relevant maintenance documentation and modification status, including system defect reports where relevant, are used to identify specific inspection requirements
   • Isolation tags are checked and aircraft configured for safe system inspection and operation in accordance with the applicable maintenance manual
   • Electrical systems are visually or physically checked for external signs of defects in accordance with applicable maintenance manual while observing all relevant work health and safety (WHS) requirements
   • Defects are correctly identified and reported
2. Test/adjust advanced aircraft electrical systems
   • Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation
   • Electrical system is functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction
   • System calibration or adjustments are performed in accordance with maintenance manual, as appropriate
3. Troubleshoot advanced aircraft electrical systems
   • Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination
   • Maintenance manual fault diagnosis guides and logic processes are used to ensure efficient and accurate troubleshooting to line replacement level
   • Specialist advice is obtained, where required, to assist with the troubleshooting process
   • System faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, in accordance with standard enterprise procedures
   • Rectification requirements are determined

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.
Electrical systems and their components include:	Direct current (DC) and alternating current (AC) power generation and distribution systems and components, including generators, alternators, starter generators and related control, regulation and distribution system components Transformer rectifier units and inverters Batteries and related bus tie or interlock system components and battery temperature monitoring systems Motors and actuators Components of gas turbine and/or piston engine ignition and starting systems (where applicable to the enterprise) External/internal lights Electrical components specific to systems, such as air cycle air conditioning, combustion heating, equipment cooling, anti-icing and de-icing, landing gear, anti-skid, flight control, master and central warning, fuel storage and distribution, fire warning and extinguishing and engine/propeller control
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 include:

recognition of system and component defects/external damage, correct installation, connection of plugs, terminations, attaching hardware (including cabling/harnesses) and security in:

DC and AC power generation systems, including regulation, distribution and control

inverters (rotary and static)

battery installations, including temperature monitoring systems

gas turbine and piston engine ignition and starting systems (where applicable to the enterprise)

propeller systems

internal/external lighting systems, including controls

landing gear systems, including anti-skid

flight controls

fire warning and extinguishing

air cycle air conditioning and combustion heating systems

equipment cooling and ventilation

fuel storage and distribution

master and central warning

applying logic processes, taking and interpreting electrical measurements, using test equipment and appropriate wiring diagrams and manuals to isolate electrical system malfunctions in the above systems

performing system functional tests and checks to isolate system faults and assess post-maintenance serviceability

applying WHS requirements applicable to the maintenance of aircraft electrical systems

using approved maintenance documentation and aircraft publications relating to the electrical systems being maintained.

It is essential that system testing procedures, cleanliness requirements and safety precautions applicable to the electrical system being maintained are fully observed, understood and complied with. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice across a range of inspection, testing and troubleshooting applications (including the timely involvement of supervisors or other trades) is critical.

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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:

the basic layout (block diagram level), function and operation of the following systems:

DC and AC power multi-generator systems, including regulation, distribution and control

inverters (rotary and static)

battery installations, including temperature monitoring systems

gas turbine and piston engine ignition and starting systems

propeller systems

internal/external lighting systems, including controls

landing gear systems, including anti-skid

flight controls

fire warning and extinguishing

air cycle air conditioning and combustion heating systems

equipment cooling and ventilation

fuel storage and distribution

master and central warning

explaining basic principles/functions, relating to the above systems and associated with:

basic DC and AC circuit theory

DC generator characteristics

alternator characteristics

starter generator characteristics

DC and AC motors

rotary and static inverter operation

WHS requirements applicable to the maintenance of aircraft electrical systems, including gas turbine engine high energy ignition units

electrical system maintenance requirements and troubleshooting procedures

relevant maintenance manuals

relevant regulatory requirements and standard procedures.

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