This unit of competency requires application of skills in the use of electronic test equipment to measure electronic circuit parameters and test performance.

Applications include aircraft components both in the hangar and workshop undergoing scheduled or unscheduled maintenance involving individual and team activities.

The unit is part of Avionic Certificate IV training pathways.

The unit is used in workplaces that operate under the airworthiness regulatory systems of the Australian Defence Force (ADF) and the Civil Aviation Safety Authority (CASA).

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

connecting test equipment to components or circuits

determining polarity and applicable connection points for measurement or testing.

The underlying skills inherent in this unit should be transferable into all areas that require the use of electronic test equipment as listed in the Range of Conditions. It is essential that the general aspects of electronic test equipment selection, preparation for use and safe application to a representative range of measurement and testing tasks are clearly understood.

Evidence is required of knowledge about the selection and use of the range of test equipment listed in the Range of Conditions, and of the methods used to identify applicable polarity and connection to components and circuits for required measurement or testing.

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:

the construction, calibration for use and testing for seviceability of:

electronic multimeters

phase-angle voltmeters

oscilloscopes (dual differential, differential, delayed time base and storage)

current probes

logic and discrete component testers

electronic component substitution boxes and miscellaneous test adapters

use of selectors and scale adjustment of each item of test equipment to ensure accurate measurement of applicable parameters

high speed oscilloscope techniques, probe calibration and safety precautions.

Competency should be assessed in the work environment, or simulated work environment, using electronic test equipment specified in maintenance documentation. It is also expected that applicable test equipment can be selected on the basis of general trade knowledge where specific test equipment is not specified.

The following conditions of assessment represent the requirements of the Regulators (ADF and CASA) and maintenance stakeholders and must be rigorously observed.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements and performance criteria of the unit of competency are being achieved under routine supervision, with each item of test equipment having been used to measure electronic circuit parameters and test performance:

electronic multimeters

phase-angle voltmeters (may be omitted where not applicable to the enterprise)

oscilloscopes (dual differential, differential, delayed time base, storage)

current probes

logic and discrete component testers

electronic component substitution boxes and miscellaneous test adapters.

This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide (for details refer to the Companion Volume Assessment Guidelines).

Assessors must satisfy the requirements of the National Vocational Education and Training Regulator (Australian Skills Quality Authority, or its successors).

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Aviation maintenance