Aircraft Mechanics: Avionics 

101403 Minor repair for aircraft electrical components or parts 

(ก) ความต้องการด้านทักษะ

See Appendix A

(ข) ความต้องการด้านความรู้

See Appendix A

(a) Performance Evidence

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

          • applying relevant WHS practices, including those relating to gas turbine engine high energy ignition units

          • using approved maintenance documentation and aircraft publications relating to DC electrical systems

          • identifying/locating:

          • DC power generation, regulation, distribution and control systems and components:

          • generators and starter/generators

          • regulators

          • bus bars

          • circuit breakers and fuses

          • wiring

          • piston engine ignition and starting systems and components

          • magnetos or coils

          • starter motors

          • ignition switches/start switches

          • ignition harnesses

          • low tension wiring

          • spark plugs

          • auxiliary starting devices

          • gas turbine engine ignition and starting systems (where applicable to the enterprise):

          • starter motors and starter/generators

          • high energy ignition units

          • control units

          • switches

          • batteries and associated mounting equipment, including related anti-vibration aids

          • motors and actuators in basic DC electrical systems

          • correctly connecting DC generators, alternator/rectifier generators and starter/generators

          • recognising system and component defects/external damage, correct installation, connection of plugs, terminations, attaching hardware (including cabling/harnesses) and security in:

          • DC power generation systems including regulation, distribution and control

          • battery installations

          • piston engine ignition and starting systems

          • gas turbine engine ignition and starting systems (where applicable to the enterprise)

          • internal/external lighting systems, including controls

          • motors and actuators in basic DC electrical systems

          • applying logic processes, taking and interpreting electrical measurements, using test equipment and appropriate wiring diagrams and manuals to isolate malfunctions in the above systems

          • performing system functional tests and checks to isolate system faults and assess post-maintenance serviceability. It is essential that system testing procedures, cleanliness requirements and safety precautions applicable to the electrical 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 related inspection, testing and troubleshooting and removal of components and installation is essential knowledge. This is to be demonstrated through the application in a wide range of aircraft electrical systems and components listed in the Conditions for Evaluation

(b) Knowledge Evidence

          Evidence required to demonstrate competency in this unit should be of interest and meet all requirements of the elements and performance criteria and include basic knowledge of:

          • component attachment methods

          • connection of hardware and plugs

          • DC electrical principles:

          • properties of permanent magnets

          • precautions for the care and storage of permanent magnets

          • properties of electromagnets

          • primary and secondary cells

          • aircraft battery types, construction, care and safety

          • resistor characteristics

          • fuses and circuit breakers

          • fundamental DC circuits

          • inductive circuits

          • capacitive circuits

          • basic fault-finding principles

          • general construction, operating characteristics and applications for aircraft:

          • DC generators

          • alternator/rectifier generators

          • DC motors including starter motors

          • starter/generators

          • DC actuators (linear and rotary)

          • gas turbine high energy ignition system components and related safety precautions

          • lighting systems

          • the basic layout (block diagram level), function and operation of the systems listed in the Range of Conditions

          • electrical system maintenance requirements and troubleshooting procedures

          • relevant WHS practices, including those relating to gas turbine engine high energy ignition units

          • relevant maintenance manuals

          • relevant regulatory requirements and standard procedures.

(c) Assessment recommendation

          N/A

Assessment methods

(a) Recommendation

          This field allows different environments and working conditions that can affect the performance. the essential operating conditions that may be present (depending on the work situation, accessibility requirements, the candidate of the topic, and local industry and regional contexts) are included.

          Applicable electrical systems include:

          • DC power generation, regulation and distribution systems

          • Piston engine and gas turbine engine ignition and starting systems (where applicable to the enterprise)

          • DC electrical systems, such as flaps, including related motors and actuators

          • Aircraft lighting

          • Aircraft main battery

          Applicable electrical components include:

          • DC generators, and alternator/rectifier generators, and components of related single generator regulation and distribution systems

          • Motors

          • Actuators

          • Piston engine and gas turbine engine ignition and starting system components

          • Aircraft batteries

          • Aircraft lighting components, such as bulbs, lenses, switches and rheostats

          Procedures and requirements include:

          Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

(b) Description

          N/A

          • The assessment are composed of paper exams , interviews, and practical demonstrations, which the paper exam is the main testing. The selection of interviews and practical demonstrations are depending on the assessors’ judgment.

          • Competition should be assessed in the workplace or work environment simulated using tools and equipment specified in the maintenance documentation. It is also expected that the general purpose tools and test equipment found in most routine situations would be used where appropriate.

          • The application of the test procedures should clearly indicate the knowledge of system operation, the relationship of the individual components and linkages with other systems (if applicable) within the limits of the aircraft / guidance system troubleshooting before taking any action. The work plan should take into account the applicable safety requirements and quality in accordance with industry and regulatory standards.

          • The following evaluation conditions represent the requirements of regulators and stakeholders maintenance and must be strictly observed.

          • A person can not be assessed as competent until they can demonstrate to the satisfaction of the assessor workplace relevant elements and performance criteria of competence unit is carried out under routine monitoring in power looms, cables and connecting hardware, and in each of the following systems and at least one (1) replaceable unit main component / line (LRU) in each case: power generation systems, regulation and distribution of DC piston engine and ignition engine and gas turbine starting systems (gas turbine may be omitted if not applicable to the company) DC electrical systems, such as fins, including motors and actuators related aircraft lighting aircraft main battery (competition can be demonstrated by performing a battery check). competencies removal and installation of components must be demonstrated with at least one (1) component of each of: DC generators and generators alternator / rectifier, and components of control systems and related distribution single generator

          • motors

          • actuators

          • piston engine and gas turbine engine ignition and starting system components (gas turbine may be omitted where not applicable to the enterprise)

          • aircraft batteries

          • aircraft lighting components such as bulbs, lenses, switches and rheostats

          • This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide.