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Elements and Performance Criteria

1. Inspect primary radar 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.
   • Primary radar system components 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 primary radar systems and components.
   • Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation.
   • Primary radar 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 primary radar systems.
   • Available information from maintenance documentation, 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.
   • Primary radar 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 knowledge

Look for evidence that confirms knowledge of Component attachment methods The basic layout block diagram level function and operation of primary radar systems Basic principlesfunctions relating to the system components and associated with basic AC and DC circuit theory digital fundamentals analogue fundamentals radar fundamentals transmission lines waveguide and antenna characteristics Primary radar system maintenance requirements and troubleshooting procedures Relevant OHS practices including those relating to ground functional testing of radar systems 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 primary radar systems and components 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 primary radar 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 primary radar system and its components 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 primary radar system and at least one major system component line replaceable unit LRU 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.
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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