Unit of competency Outline

Date retreived
22/07/2026 3:01 PM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Maintain twin engine aircraft electrical systems and components

Maintain twin engine aircraft electrical systems and components

Unit of competency
National Code
MEA277
State Code
AUD94
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
12/02/2015
View on TGA
State Implementation and Classification
Approved Date
22/07/2015
Field of Education
031503 - Aircraft Maintenance Engineering
Original Release Date
22/07/2015
Nominal Hours
60
Description
This unit of competency extends the competencies developed in units MEA202 Remove and install basic aircraft electrical system components and MEA210 Inspect, test and troubleshoot basic aircraft electrical systems and components to include the maintenance of additional electrical systems found in twin piston engine fixed wing aircraft during scheduled or unscheduled maintenance. Work may be performed individually or as part of a team.The unit is part of the small aircraft maintenance Certificate IV Mechatronics training pathway. Where a Civil Aviation Safety Authority (CASA) licensing outcome is sought this unit forms part of the CASA requirement for the granting of the chosen maintenance certification licence under Civil Aviation Safety Regulation (CASR) Part 66, in accordance with the licensing provisions in the Companion Volume Implementation Guide.
Notes
Elements and Performance Criteria
1. Inspect twin engine aircraft electrical systems and components
  • 1.1 Relevant maintenance documentation and modification status, including system defect reports, where relevant, are used to identify specific inspection requirements
  • 1.2 Isolation tags are checked and aircraft configured for safe system inspection and operation in accordance with the applicable maintenance manual while observing all relevant work health and safety (WHS) requirements
  • 1.3 Direct current (DC) electrical system is visually or physically checked for external signs of defects in accordance with applicable maintenance manual
  • 1.4 Defects are correctly identified and reported
2. Test/adjust twin engine aircraft electrical systems
  • 2.1 Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation
  • 2.2 Electrical system is functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction
  • 2.3 System calibration or adjustments are performed in accordance with maintenance manual, as appropriate
3. Troubleshoot twin engine aircraft electrical systems
  • 3.1 Available information from maintenance documentation and inspection and test results is used, where necessary, to assist in fault determination
  • 3.2 Maintenance manual fault diagnosis guides and logic processes are used to ensure efficient and accurate troubleshooting to line replacement level
  • 3.3 Specialist advice is obtained, where required, to assist with the troubleshooting process
  • 3.4 System faults are located and the causes of the faults are clearly identified and correctly recorded in maintenance documentation, where required, and in accordance with standard enterprise procedures
  • 3.5 Rectification requirements are determined
4. Remove and install twin engine aircraft electrical system components
  • 4.1 System is rendered safe and prepared in accordance with the applicable maintenance manual and isolation tags are fitted, where necessary, to ensure personnel safety
  • 4.2 Electrical component removal is carried out in accordance with the applicable maintenance manual while observing all relevant WHS requirements
  • 4.3 Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
  • 4.4 Removed components are tagged and packaged in accordance with specified procedures
  • 4.5 Electrical components to be installed are checked to confirm correct part numbers, modification status, serviceability and shelf life
  • 4.6 Physical installation of electrical components is performed in accordance with the applicable maintenance manual, ensuring appropriate adjustment/alignment with mechanical interface is carried out
  • 4.7 System is reinstated to correct operational condition in preparation for testing, as necessary
  • 4.8 Required maintenance documentation is completed and processed in accordance with standard enterprise procedures
No information
No information
Replaces
State Code National Code Title Type
D4448 MEA277A Maintain twin engine aircraft electrical systems and components Unit of competency
Replaced By
State Code National Code Title Type
OEG34 MEAAVI0047 Maintain twin-engine aircraft electrical systems and components Unit of competency