Elements and Performance Criteria
- Inspect light aircraft AC instrument systems, power supplies 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
- AC instrument system and AC power supply components are visually or physically checked for external signs of defects in accordance with applicable maintenance manual
- Defects are correctly identified and reported
- Test/adjust light aircraft AC instrument systems, power supplies and components
- Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation
- Instrument system and AC power supply 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
- Troubleshoot light aircraft AC instrument systems, power supplies and components
- 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
- Instrument system or power supply 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
- Remove and install light aircraft AC instrument system, and power supply components
- System is rendered safe and prepared in accordance with the applicable maintenance manual and isolation tags are fitted where necessary to ensure personnel safety
- Instrument or power supply component removal is carried out in accordance with the applicable maintenance manual
- Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
- Removed components are tagged and packaged in accordance with specified procedures
- Instrument or power supply components to be installed are checked to confirm correct part numbers, modification status, serviceability and shelf life
- Physical installation of instrument or power supply components is performed in accordance with the applicable maintenance manual and regulatory requirements, ensuring appropriate adjustment/alignment is carried out
- System is reinstated to correct operational condition in preparation for testing, as necessary