Elements and Performance Criteria
- Verify the defect.
- Available information from flight crew such as flight phase, aircraft configuration etc., maintenance documentation both current and previous history, is 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 system(s) disturbed, where required.
- Determine defect rectification requirements.
- Verify defect rectification
- Defect is rectified in accordance with (IAW) 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