Maricopa Community Colleges  AVT150   19936-19965 
Official Course Description: MCCCD Approval: 03/26/96
AVT150 19936-19965 L+L 5 Credit(s) 6 Period(s)
Avionics Systems: Landing Gear, Hydraulics, and Fuel
Theory of operation, interfacing, troubleshooting, adjustment, and repair of landing gear systems, hydraulic systems, and fuel systems. Prerequisites: Permission of Program Director.
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MCCCD Official Course Competencies:
 
AVT150   19936-19965 Avionics Systems: Landing Gear, Hydraulics, and Fuel
1. Review the components and basic operation of landing gear systems. (I)
2. Test, troubleshoot, and repair landing gear control and indicator sytems. (I)
3. Review the components and basic operation of hydraulic systems. (II)
4. Test, troubleshoot, and repair hydraulic system control, indicator, and monitoring systems. (II)
5. Review the components and basic operation of fuel systems. (III)
6. Test, troubleshoot, and repair fuel control, indicator, and warning systems. (III)
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MCCCD Official Course Outline:
 
AVT150   19936-19965 Avionics Systems: Landing Gear, Hydraulics, and Fuel
    I. Landing Gear Systems
        A. Theory of operation
        B. Interfacing
        C. Landing gear components
          1. Main gear and doors
          2. Nose gear and doors
          3. Ground sensing control mechanism
          4. Extension and retraction
            a. Landing gear control handle
            b. Emergency gear extension control mechanism
            c. Main gear manual open mechanism
            d. Main gear follow-up mechanism
          5. Landing gear hydraulic control systems
          6. Landing gear position and warning systems
            a. Proximity switches (sensors)
            b. Landing gear lever switch
            c. Throttle switches
            d. Flap position switches
            e. Central aural warning system
            f. Gear horn off switch
            g. Emergency gear extension control lever switch
            h. Visual indication
          7. Steering
          8. Antiskid control
            a. Skid control box
            b. Skid control valve
            c. Fluid quantity limiter valve
            d. Skid control manifold
            e. Skid control transducers
            f. Parking brake valve
            g. Antiskid return accumulator
            h. Antiskid annunciator lights
          9. Landing gear access module and its components
          10. Troubleshooting
            a. Fault Isolation Manual
            b. Schematic Diagrams Manual
            c. Wiring Diagrams Manual
          11. Repairing landing gear systems
      II. Hydraulic Power Systems
          A. Hydraulic piping components
          B. Main hydraulic systems
            1. Left
            2. Right and center
            3. 1, 2, 3, 4, etc.
            4. Blue, green, and yellow
          C. Auxiliary hydraulic systems
          D. Indicating systems
            1. Pressure
            2. Quantity
            3. Temperature
            4. Low-pressure
            5. High-temperature
          E. Troubleshooting
            1. Fault Isolation Manual
            2. Schematic Diagrams Manual
            3. Wiring Diagrams Manual
          F. Repairing hydraulic power systems
        III. Fuel Systems
            A. Storage
              1. Integral fuel tanks
              2. Bladder tanks
              3. Welded tanks
              4. Fuel vent system
              5. Continuous scavenging
            B. Indicating
              1. Fuel quantity indicating system
                a. Capacitance type
                b. Float
              2. Fuel measuring sticks
              3. Fuel schedule light system
              4. Tank pump low pressure lights
              5. Tank fuel temperature
              6. Overfill system
              7. Auxiliary power unit (APU) fuel pump low pressure light
              8. Service refueling panel
            C. Distribution
              1. Tank refueling and defueling systems
              2. Engine fuel supply system
                a. Fuel flow
                b. Fuel heater
              3. APU fuel supply system
              4. Manifold fuel supply drain
              5. Crossfeed transfer
            D. Dump
            E. Troubleshooting
              1. Schematic Diagrams Manual
              2. Wiring Diagrams Manual
              3. Fault Isolation Manual
              4. Maintenance Manual
            F. Repairing fuel systems
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