Elements and Performance Criteria

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Application of this unit may relate to:
Scheduled or unscheduled maintenance
Individual or team related activities
Procedures and requirements refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise


1. Electronic instrument displays - Electronic Flight Instrument Systems (EFIS), Engine Indicating and Crew Alerting Systems (EICAS), Flight Management Computer Systems (FMCS), Electronic Centralised Aircraft Monitor systems (ECAM), and Head-Up Display systems (HUD) (where applicable to enterprise)
2. Instrument navigation systems - Inertial Navigation Systems (INS), Inertial Reference Systems (IRS), compasses and Attitude and Heading Reference Systems (AHRS)
3. Communication systems - High Frequency (HF), Very High Frequency (VHF), Ultra High Frequency (UHF), Satellite Communication (SATCOM), intercom, Emergency Location Transmitter (ELT) and Cockpit Voice Recorder (CVR)
4. Radio navigation systems - Automatic Direction Finding (ADF), Very High Frequency Omni-Range (VOR), Instrument Landing System (ILS), and Global Navigation System (GNS)
5. Pulse operated systems - weather radar, navigation radar, ATC transponder, Radio Altimeter (RADALT), Distance Measuring Equipment (DME), doppler and Aircraft Collision Avoidance System (ACAS) (where applicable to enterprise).

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
A person who demonstrates competency in this unit must be able to inspect aircraft electronic systems and components while observing all relevant safety precautions.

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The underlying skills inherent in this unit should be transferable across a range of inspection applications (including the timely involvement of supervisors or other trades) associated with aircraft electronic systems and components. It is essential that cleanliness requirements and safety precautions applicable to the system being maintained are fully observed, understood and complied with. Ability to interpret inspection procedures and specifications (allowable limits) and apply them in practice is critical.
Evidence of transferability of skills and knowledge related to inspection is essential. This is to be demonstrated through application across a range of electronic systems and components listed in the Range Statement. The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.
A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements of the Unit of Competency are being achieved under routine supervision on each type of system listed in Groups 1 to 5 in the Range Statement and at least one component for each listed system type. This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide.

Context of and specific resources for assessment
Competency should be assessed in the workplace or simulated workplace using tools and equipment specified in the maintenance manuals. It is also expected that general and special purpose tools, test and ground support equipment would be used where appropriate.