Maricopa Community Colleges  AVT120   19936-19962 
Official Course Description: MCCCD Approval: 05/25/93
AVT120 19936-19962 L+L 5 Credit(s) 6 Period(s)
Avionics Systems: Basic
Theory of operation, interfacing, troubleshooting, and repair of systems and components related to electrical power systems. Includes instrument and warning systems for all types of aircraft. Prerequisites: AVT110 and AVT115.
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MCCCD Official Course Competencies:
 
AVT120   19936-19962 Avionics Systems: Basic
1. Explain, identify, test, and troubleshoot aircraft direct current power. (I)
2. Explain, identify, test, and troubleshoot aircraft alternating current power. (II)
3. Explain, identify, test, and troubleshoot aircraft power distribution.(III)
4. Explain, identify, test, and troubleshoot aircraft fire protection and extinguishing systems. (IV)
5. Review, identify, test, and troubleshoot instruments and warning systems. (V)
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MCCCD Official Course Outline:
 
AVT120   19936-19962 Avionics Systems: Basic
    I. Aircraft Direct Current (DC) Power
        A. Theory of operation
        B. Sources
          1. Transformer rectifier
          2. Main and auxiliary power unit (APU) batteries
          3. Static inverter
        C. Components
          1. Contactors
          2. Relays
          3. Switches and indicators
          4. Wires
        D. Troubleshooting
          1. Schematic Diagrams Manual
          2. Wiring Diagram Manual
          3. Fault Isolation Manual
        E. Repairing DC power systems
      II. Aircraft Alternating Current (AC) Power
          A. Theory of operation
          B. Sources
            1. APU generator
            2. Engine generator
          C. Components
            1. Generator control units
            2. Main power breaker
            3. Current transformers
            4. Electrical load control units
            5. Bus protection panel
            6. Load shedding
            7. AC power indication system
          D. Troubleshooting
            1. Schematic Diagrams Manual
            2. Wiring Diagram Manual
            3. Fault Isolation Manual
          E. Repairing AC power systems
        III. Power Distribution
            A. Theory of operation
            B. Left bus
            C. Right bus
            D. APU bus
            E. Ground power bus
            F. Ground service
            G. Split system
          IV. Fire Protection
              A. Theory of operation
              B. Engine fire detection system
                1. Fire detector unit
                2. Fire detector control unit
                3. Warning light
                4. Fire warning bell
                5. Detection system operation
              C. APU fire detection system
                1. Fire detector unit
                2. Fire detector control unit
                3. APU ground control panel
                4. Loop selector switches
                5. Loop test switch
              E. Fire extinguishing system
                1. Extinguishing discharge control
                2. Extinguisher operation
              D. Cargo compartment smoke detectors
                1. Detector operation
                2. Cargo compartment extinguisher
                3. Cabin cargo smoke detector
              F. Testing
              G. Troubleshooting
              H. Repairing fire protection systems
            V. Instruments and Warning Systems
                A. Theory of operation
                B. Instrument indicators
                  1. Description and operation
                  2. Bezel- and clamp-type indicators
                  3. Rear-mount indicators
                C. Panels
                  1. Pilot's panels
                  2. Flight attendant panel
                  3. Circuit breaker, relay, and miscellaneous
                D. Independent instruments
                  1. Flight recorder system
                    a. Digital flight data recorder
                    b. Flight data acquisition unit
                    c. Control wheel position transducer
                    d. Accelerometer
                    e. Control column position transducer
                    f. Flight data-entry panel
                    g. Interfacing airplane system parameter signals
                    h. Rudder position pedal transducer
                    i. Stabilizer position transducer
                  2. Clocks
                  3. Underwater beacon and emergency locator transmitter
                E. Aural warning systems
                  1. Thrust lever actuated landing gear warning
                  2. Flap landing warning
                  3. Thrust lever actuated take-off warning
                  4. Flap take-off warning
                  5. Stabilizer take-off warning
                  6. Speed brake take-off warning
                  7. Cabin altitude warning
                  8. Mach trim warning
                F. Testing
                G. Troubleshooting
                H. Repairing instruments and warning systems
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