Maricopa Community Colleges  AVT120   19964-20086 
Official Course Description: MCCCD Approval: 07/22/08
AVT120 19964-20086 L+L 6 Credit(s) 8 Period(s)
Avionics: Airframe Systems Interfacing I
Theory of operation, interfacing, and troubleshooting of systems and components related to aircraft lighting, fire protection and extinguishing, electrical power systems, and instrument and warning systems for all types of aircraft. Theory of operation, interfacing, and adjustment of landing gear systems, hydraulic systems, and doors.
Prerequisites: Permission of Department or Division.
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MCCCD Official Course Competencies:
 
AVT120   19964-20086 Avionics: Airframe Systems Interfacing I
1. Explain the theory of operation of the different types of aircraft lights. (I)
2. Explain the theory of operation, test, and troubleshoot aircraft direct current power.(II)
3. Explain the theory of operation, test, and troubleshoot aircraft alternating current power. (III)
4. Explain the theory of operation of the aircraft power distribution system. (IV)
5. Explain the theory of operation, test, and troubleshoot the aircraft fire protection systems. (V)
6. Review, identify, test, and troubleshoot instruments and warning systems. (VI)
7. Explain the theory of operation, test, and troubleshoot the landing gear systems. (VII)
8. Explain the theory of operation of the hydraulic power systems. (VIII)
9. Explain the theory of operation, test, and troubleshoot aircraft doors. (X)
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MCCCD Official Course Outline:
 
AVT120   19964-20086 Avionics: Airframe Systems Interfacing I
    I. Aircraft Lights
        A. Theory of operation
        B. Types
          1. Flight compartment lights
            a. Dome
            b. Glare shield
            c. Background
            d. Instrument
            e. Map
            f. Circuit breaker
            g. Panel
            h. Photo sensors
          2. Passenger compartment lights
            a. Reading
            b. Window and cove
            c. Ceiling
            d. Night
            e. Call l
            f. Fasten seat belt
            g. Nonsmoking
          3. Lavatory lights
            a. Mirror
            b. Dome
            c. Call
            d. Nonsmoking
            e. Return-to-seat
          4. Galley lights a Service lights
            b. Ovens
            c. Coffee makers
          5. Emergency lights
            a. Proximity (seat- and floor-mounted)
            b. Batteries (hard-wire and remote-activated)
            c. Exit
            d. Exterior emergency
          6. Navigation lights
            a. Position
            b. Strobe
            c. Red anti-collision
          7. Other exterior lights
            a. Taxi b Runway turn-off
            c. Logo d Landing
            e. Service
            f. Cargo compartment
            g. Loading and unloading
        C. Interfacing
      II. 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. Test and troubleshoot
          E. Interfacing
        III. 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. Test and troubleshoot
            E. Interfacing
          IV. Power Distribution Systems
              A. Theory of operation
              B. Bus distribution
                1. Left bus
                2. Right bus
                3. Auxiliary power unit bus
                4. Ground power bus
                5. Ground service bus
              C. Split system
              D. Interfacing
            V. Fire Protection System
                A. Theory of operation
                B. Engine fire detection system
                  1. Fire detector unit
                  2. Fire detection 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
                D. Fire extinguishing system
                  1. Extinguishing discharge control
                  2. Extinguisher operation
                E. Cargo compartment smoke detectors
                  1. Detector operation
                  2. Cargo compartment extinguisher
                  3. Cabin cargo smoke detector
                F. Test and troubleshoot G Interfacing
              VI. 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. Pilots
                    2. Flight attendant
                    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 break take-off warning
                    7. Cabin altitude warning
                    8. Mach trim warning
                  F. Test and troubleshoot
                  G. Interfacing
                VII. Landing Gear Systems
                    A. Theory of operation
                    B. 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 break valve
                        g. Anti skid return accumulator
                        h. Anti skid annunciator lights
                      9. Landing gear access module and its components
                    C. Test and troubleshoot
                    D. Interfacing
                  VIII. Hydraulic Power Systems
                      A. Theory of operation
                      B. Hydraulic piping components
                      C. Main hydraulic systems
                        1. Left
                        2. Right and Center
                        3. 1, 2, 3, 4, etc.
                        4. Blue, green, and yellow
                      D. Auxiliary hydraulic systems
                      E. Indicating systems
                        1. Pressure
                        2. Quantity
                        3. Temperature
                        4. Low-pressure
                        5. High-temperature
                      F. Interfacing
                    IX. Aircraft Doors
                        A. Theory of operation
                        B. Types of doors
                          1. Entry doors
                          2. Emergency doors
                          3. Cargo doors
                          4. Access doors a Electrical and electronics compartment
                            b. Radar compartment c Center compartment
                            d. Air conditioning compartment
                        C. Entry door escape system
                          1. Electrical
                          2. Manual
                          3. Hydraulic
                        D. Door Warning system
                          1. Switches
                          2. Lights and warnings
                        E. Test and troubleshoot
                        F. Interfacing
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