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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.
   • 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.
   • 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.
   • Determine rectification requirements.

Required Skills

Required skills

Look for evidence that confirms skills in Recognition of system and component defectsexternal damage correct installation connection of plugs terminations attaching hardware including cablingharnesses 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 propeller systems internalexternal lighting systems including controls landing gear systems including antiskid 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 OHS requirements applicable to the maintenance of aircraft electrical systems Use of approved maintenance documentation and aircraft publications relating to the electrical systems being maintained

Required knowledge

Look for evidence that confirms knowledge of The basic layout block diagram level function and operation of the following systems DC and AC power multigenerator 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 internalexternal lighting systems including controls landing gear systems including antiskid 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 principlesfunctions 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 OHS 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

Evidence Required

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package
Overview of assessment	A person who demonstrates competency in this unit must be able to inspect test and troubleshoot DC and AC electrical systems and components including looms cables and connection hardware while observing all relevant safety precautions
Critical aspects for assessment and evidence required to demonstrate competency in this unit	The underlying skills inherent in this unit should be transferable across a range of inspection testing and troubleshooting applications including the timely involvement of supervisors or other trades associated with aircraft electrical systems and components It is essential that system testing procedures cleanliness requirements and safety precautions applicable to the system being maintained are fully observed understood and complied with Ability to interpret inspection procedures and specifications allowable limits and apply them in practice is critical Evidence of transferability of skills and knowledge related to inspection testing and troubleshooting is essential This is to be demonstrated through application across a range of aircraft electrical systems and components listed in the Range Statement The application of testing procedures should clearly indicate knowledge of system operation the relationship of individual components and the links with other systems if applicable within the limits of the aircraftsystem fault finding guide before undertaking any action The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements of the Unit of Competency are being achieved under routine supervision on a system and at least one item from each of Groups to in the Range Statement This shall be established via the records in the Log of Industrial Experience and Achievement or where appropriate an equivalent Industry
Context of and specific resources for assessment	Competency should be assessed in the workplace or simulated workplace using tools and equipment specified in the maintenance manuals It is also expected that general and special purpose tools test and ground support equipment would be used where appropriate
Method of assessment
Guidance information for assessment

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Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Note	Range statements listed below are numbered to facilitate specification of the assessment requirements included in the Evidence Guide.
Electrical systems and their components	Electrical systems and their components include: 1. DC and AC power generation and distribution systems and components, including generators, alternators, starter generators and related control, regulation and distribution system components 2. Transformer rectifier units and inverters 3. Batteries and related bus tie or interlock system components and battery temperature monitoring systems 4. Motors and actuators 5. Components of gas turbine and/or piston engine ignition and starting systems (where applicable to the enterprise) 6. External/internal lights 7. 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.
Troubleshooting	Troubleshooting involves the use of fault finding charts or similar, to line replacement level.
	Application of this unit may relate to: Scheduled or unscheduled maintenance activities Individual or team related activities
Procedures and requirements	Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

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