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7247 Apply avionic maintenance practices

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7247 Apply avionic maintenance practices

    7247 version 5

    Page 1 of 4

    Apply avionic maintenance practices

Level 3

    Credits 23

    Purpose This unit standard is for people pursuing unit standards in the avionic repair

    and avionic maintenance domains. It covers electrical knowledge and generic

    maintenance practices which apply to avionic repair and maintenance activities.

     People credited with this unit standard are able to demonstrate knowledge of

    direct and alternating current electrical circuits and their application and use

    in avionic equipment.

     They are also able to identify avionic and aircraft wiring components, test

    circuit protection devices, solder plugs, terminals and avionic parts; and are

    able to measure electrical quantities and avoid electrostatic discharge

    damage when handling avionic components.

Subfield Aeronautical Engineering

    Domain Aeronautical Engineering - Core

    Status Registered

    Status date 19 May 2006

    Date version published 21 September 2007

    Planned review date 31 December 2011

    Entry information Open.

    Accreditation Evaluation of documentation and visit by NZQA and

    industry.

    Standard setting body (SSB) Aviation, Tourism and Travel Training Organisation

     Aeronautical Engineering Advisory Group

    Accreditation and Moderation Action Plan (AMAP) reference 0028

    This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.

Special notes

    1 Competencies within this unit standard will be assessed in the work environment or

    by the use of simulated activities off the job.

     ; New Zealand Qualifications Authority 2012

    7247 version 5

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    2 Standard practices referred to are those in the aviation industry, examples being Great

    Britain Civil Aviation Authority, CAP 562: Civil Aircraft Airworthiness Information and

    Procedures (CAAIP) (London: TSO) and United States Federal Aviation

    Administration, Advisory Circular 43.13, Acceptable Methods, Techniques, and

    Practices Aircraft Inspection and Repair (US Dept of Transportation).

    3 All tasks are to be carried out in accordance with enterprise procedures, the

    enterprise being the organisation carrying out the work. Enterprise procedures

    referred to in this unit standard are the applicable procedures found in the following:

     enterprise exposition;

     manufacturer publications;

     Government and local body legislation;

     airworthiness authority requirements.

Elements and performance criteria

Element 1

    Demonstrate knowledge of direct current (DC) electrical circuits.

Performance criteria

    1.1 Direct current (DC) sources are described in terms of their application to avionic

    components and systems.

    Range electron theory, static electricity, electrical terms, generation

    methods, electrical cells.

    1.2 Direct current resistive circuits are described in terms of their application to

    avionic components and systems.

    Range resistance and resistors, circuit operation, electrical power,

    variable resistors.

    1.3 Capacitors are described in terms of their application to and use in, avionic

    components and systems.

    Range capacitor principles, types, operation in circuits.

    1.4 Magnetism is described in terms of its characteristics and application to

    electrical circuits and avionic equipment.

    Range properties of magnets, terrestrial magnetism, magnetic fields,

    electromagnetic induction.

    1.5 Direct current rotating machines are described in terms of principles of

    construction and operating characteristics.

    Range motors, generators.

     ; New Zealand Qualifications Authority 2012

    7247 version 5

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    Element 2

Demonstrate knowledge of alternating current (AC) circuits.

Performance criteria

    2.1 Alternating current single-phase circuits are described in terms of their

    characteristics and application to avionic systems and equipment.

    Range electrical terms, reactance, impedance, series and parallel circuits,

    resonance, filter circuits, calculations performed.

    2.2 Alternating current rotating machines are described in terms of principles of

    construction and operating characteristics.

    Range motors, generators.

    2.3 Three phase alternating current is described in terms of its application to aircraft

    electrical systems.

    Range star and delta connection, line and phase values.

    2.4 Transformers are explained in terms of types and principles of operation.

    Range double-wound, auto-transformer, variac.

Element 3

Identify avionic and aircraft wiring components.

Performance criteria

    3.1 Aircraft wiring is selected to match circuit specifications.

    Range insulation type, wire gauge, conductor material, wire numbering.

    3.2 Avionic components are selected to match circuit specifications.

    Range semiconductors, fuses, plugs, connectors, terminals, solenoids,

    relays, transformers, circuit breakers, switches, resistors,

    capacitors, batteries, ground points; by appearance, by symbols

    on circuit diagrams.

     ; New Zealand Qualifications Authority 2012

    7247 version 5

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    Element 4

Apply avionic repair and maintenance skills.

Performance criteria

    4.1 Circuit protection devices are tested in accordance with standard industry

    practices.

    Range circuit breakers, fuses.

    4.2 Avionic components are soldered in accordance with standard industry

    practices.

    Range cup terminals, turret terminals, axial lead components, dual-in-line

    packages, coaxial plugs; tooling selected.

    4.3 Electrostatic discharge damage is avoided in accordance with standard industry

    practices.

    4.4 Electrical quantities are measured in accordance with standard industry

    practices.

    Range continuity, insulation, voltage, current, resistance, frequency; in

    alternating and direct current circuits.

Please note

    Providers must be accredited by NZQA, or an inter-institutional body with delegated authority for quality assurance, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.

    Industry Training Organisations must be accredited by NZQA before they can register credits from assessment against unit standards.

    Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards.

    Accreditation requirements and an outline of the moderation system that applies to this standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The AMAP also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.

Comments on this unit standard

Please contact the Aviation, Tourism and Travel Training Organisation info@attto.org.nz if

    you wish to suggest changes to the content of this unit standard.

     ; New Zealand Qualifications Authority 2012

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