103 Aircraft Mechanics: Avionics 

103405 Inspect aircraft electronic systems and components

(ก) ความต้องการด้านทักษะ

See Appendix A

(ข) ความต้องการด้านความรู้

See Appendix A

(a) 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

          • using approved maintenance documentation and aircraft publications relating to the RF and communications system being maintained

          • recognition of system and component defects/external damage, correct installation, and attaching hardware (including cabling/harnesses/transmission lines) and security in:

          • external communications systems:

          • HF

          • UHF

          • VHF

          • SATCOM and microwave

          • internal communications systems, including:

          • intercommunication

          • cabin intercommunication data systems

          (where applicable to the enterprise)

          • cabin network services (where applicable to the enterprise)

          • CVR

          • information systems, such as air traffic and information management systems, and network server systems (where applicable to the enterprise)

          • RF navigation systems:

          • ILS

          • VOR

          • ADF

          • GNS

          • ACARS

          • ELT systems

          • applying logic processes, taking and interpreting system measurements to accurately and effectively isolating malfunctions within the systems

          • performing system testing to isolate system faults and assess post-maintenance serviceability.

          It is essential that system testing procedures, cleanliness requirements and safety precautions applicable to the aircraft communication and RF navigation 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 testing and troubleshooting is essential. This is to be demonstrated through application across a range of aircraft communication and RF navigation systems and components listed in the Assessment Description and Procedure.

(b) 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 basic knowledge of:

          • component attachment methods

          • explaining the basic layout (block diagram level), function and operation of:

          • external communications systems:

          • HF

          • UHF

          • VHF

          • SATCOM and microwave

          • internal communications systems, including:

          • intercommunication

          • cabin intercommunication data systems (where applicable to the enterprise)

          • cabin network services (where applicable to the enterprise)

          • CVR

          • information systems, such as air traffic and information management systems, and network server systems

          • RF navigation systems:

          • ILS

          • VOR

          • ADF

          • GNS

          • ACARS

          • ELT systems

          • explaining basic principles/functions relating to the above systems and associated with:

          • electromagnetic radiation and propagation

          • basic AC and DC circuit theory

          • digital fundamentals

          • analogue fundamentals

          • antenna characteristics

          • transmission line characteristics

          • WHS requirements

          • system and component maintenance requirements and troubleshooting procedures

          • relevant maintenance manuals

          • relevant regulatory requirements and standard procedures.

          This part 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.

          • RF navigation or communication systems include:

          • Control and sensing associated with cockpit radio, ground and flight crew communications including frequency modulation (FM) and amplitude modulation (AM) modes of operation in the high frequency (HF), ultra-high frequency (UHF), and very high frequency (VHF) bands, microwave systems and satellite communications (SATCOM)

          • Passenger communications, cockpit voice recorder (CVR), audio integration system, cabin intercommunication data systems and cabin network services (where applicable to the enterprise)

          • Information systems, such as air traffic and information management systems, and network server systems (where applicable to the enterprise)

          • Instrument landing system (ILS), very high frequency Omni-range (VOR), automatic direction finding (ADF), global navigation system (GNS), emergency beacons and aircraft communications addressing and reporting system (ACARS)

          • Antennae, impedance audio matching devices, microphones and headphones, transmission lines, computer controls, line replaceable units, transmitters/receivers and indicators

          • Procedures and requirements include:

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

          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.

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

          • The application of testing procedures should clearly indicate knowledge of system operation, the relationship of individual components and the links with other systems (if applicable) within the limits of the aircraft/system fault-finding guide before undertaking any action. The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.

          • An individual cannot be evaluated 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 on at least one (1) system and its major components from each of the following groups:

          • control and sensing associated with cockpit radio, ground and flight crew communications including FM and AM modes of operation in the HF, UHF, and VHF bands, microwave systems and SATCOM

          • passenger communications, CVR, audio integration system, cabin intercommunication data systems and cabin network services (may be omitted if not applicable to the enterprise)

          • information systems, such as air traffic and information management systems, and network server systems (may be omitted if not applicable to the enterprise)

          • ILS, VOR, ADF, GNS, emergency beacons and ACARS

          • and the following general associated components:

          • antennae, impedance audio matching devices, microphones and headphones, transmission lines, computer controls, line replaceable units, transmitters/receivers and indicators.

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