Elements and Performance Criteria
- Verify the defect
- Available information from flight crew, such as flight phase, aircraft configuration etc., and maintenance documentation both current and previous history, are used as necessary, to assist in fault determination
- Inspection of the affected system is carried out to check both physical integrity and correct operation
- Information gained from Central Maintenance Systems is verified against physical integrity and correct operation, where applicable
- The effects on a system from interfaces/integration with other systems are taken into account
- Isolate the defect
- Logical processes, including the application of basic principles and system knowledge and known facts, are used to augment maintenance manual fault diagnosis guides to ensure efficient and accurate troubleshooting
- Specialist advice is obtained, where required and/or available, to assist with the troubleshooting process
- Faults are located and the causes of the defects are clearly identified and correctly recorded in maintenance documentation, including any other systems disturbed, where required
- Determine defect rectification requirements
- Verify defect rectification
- Defect is rectified in accordance with approved maintenance data
- All systems disturbed or accessed during troubleshooting are restored as applicable using maintenance manuals, repair schemes or approved maintenance data
- All checks required by approved maintenance data to ensure correct operation of all disturbed systems are performed