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Elements and Performance Criteria

1. Inspect FADEC 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
   • FADEC system is visually or physically checked for external signs of defects in accordance with applicable maintenance manual while observing all relevant work health and safety (WHS) requirements
   • Defects are correctly identified and reported
2. Test FADEC systems
   • Aircraft and system are prepared in accordance with applicable maintenance manual for the application of power/system operation
   • FADEC system is functionally tested in accordance with maintenance manual for evidence of serviceability or malfunction
3. Troubleshoot FADEC systems
   • Available information from maintenance documentation and 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 using test sets, downloaded maintenance data and fault-finding charts or similar, to line replacement level
   • Specialist advice is obtained, where required, to assist with the troubleshooting process
   • 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
   • Rectification requirements are determined

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.
FADEC systems include:	Computers, sensors, interfaces, cockpit controls, data cables and wiring looms that comprise the electronic control system Other engine-mounted related components, such as spark plugs, ignition units, injectors and fuel control units are covered by the applicable engine maintenance units (e.g. MEA313 Inspect, test and troubleshoot piston engine systems and components, MEA314 Inspect, test and troubleshoot gas turbine engine systems and components or MEA353 Maintain basic light aircraft engines and propellers)
Procedures and requirements include:	Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

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Performance Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

applying relevant WHS practices, including those relating to engine ground running

using approved maintenance documentation and aircraft publications relating to the applicable FADEC system

using test sets to download maintenance data from the FADEC system and interpreting the data

identifying/locating airframe and engine, including propeller/rotor-mounted FADEC system components

recognising system and component defects/external damage, correct installation, connection of plugs, terminations, attaching hardware (including cabling/harnesses) and security in airframe and engine-mounted FADEC system components

correctly handling electrostatic sensitive devices

applying logic processes, using test equipment and appropriate wiring diagrams and manuals to isolate FADEC system malfunctions

using built-in test features to confirm post-maintenance serviceability.

It is essential that system testing procedures, cleanliness requirements and safety precautions applicable to the FADEC system being maintained are fully observed, understood and complied with. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice across a range of inspection, testing and troubleshooting applications (including the timely involvement of supervisors or other trades) is critical.

Evidence of transferability of skills and knowledge related to inspection, testing and troubleshooting and component removal and installation is essential. This is to be demonstrated through application on FADEC systems and components as defined in the Range of Conditions.

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Knowledge Evidence

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

component attachment methods

connection of hardware and plugs

digital electronic theory

open and closed loop control

the basic layout (block diagram level), function and operation of FADEC systems

architecture of FADEC system computers, software and software management

operation of sensors that input data to FADEC system computers

built-in test system operation and downloading and interpretation of system data

relevant regulatory requirements and standard procedures, including software management control

maintenance requirements and troubleshooting procedures

relevant maintenance manuals.

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