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PBB 105
Term 2
3 credits

Passenger Boarding Bridge Controls, Auto-Leveling, and Safety Systems

This intermediate technical course delivers comprehensive training on the electronic, electro-mechanical, and automated systems that govern modern passenger boarding bridges. Technicians analyze operator console interfaces, programmable logic controllers, relay logic systems, and variable frequency drives governing bridge positioning. Detailed attention is given to auto-leveling wheels and optical tracking systems that compensate for dynamic aircraft movement during fueling and boarding cycles. Learners master the calibration, troubleshooting, and testing of safety-critical subsystems, including ultrasonic proximity sensors, bumper pressure switches, travel limit interlocks, and emergency stop circuits. Emphasizing rigorous diagnostics and schematic interpretation, the curriculum prepares students to isolate wiring faults, address communication errors, and perform routine preventative safety audits. Through structured coursework and intensive practical exercises, technicians develop the competencies required to verify bridge operational reliability, prevent equipment-to-aircraft contact incidents, and maintain safe operational envelopes on commercial airport aprons.

InstructorJacob Calhoun

Prerequisites

Course outline

Lectures, virtual labs, and graded assignments — completed in your browser.

01Lesson 1: Bridge Control Architectures, Schematics, and Operator Consoleslecture
02Lesson 2: Relay Logic, Interlocks, and Controller Inputs and Outputslecture
03Lesson 3: Position Encoders, Resolvers, and Travel Limit Switch Arrayslecture
04Hands-on Lab: Sensor Calibration and Limit Switch Alignment Diagnosticslab
05Lesson 5: Auto-Leveling Mechanical Linkages, Wheels, and Follow-Up Transducerslecture
06Lesson 6: Optical and Ultrasonic Proximity Sensing for Aircraft Approachlecture
07Lesson 7: Cab Rotation, Articulation Joints, and Canopy Actuation Controlslecture
08Hands-on Lab: Auto-Leveling Calibration and Aircraft Drift Simulationlab
09Lesson 9: Aircraft Protection Systems: Sensitive Bumpers and Pressure Edgeslecture
10Lesson 10: System Diagnostics, Fault Annunciation, and Event Logging Analysislecture
11Hands-on Lab: Control Loop Troubleshooting and Safety Circuit Fault Isolationlab
12Lesson 12: Wind Load Sensing, Environmental Interlocks, and Motion Alarmslecture
13Lesson 13: Emergency Stop Networks, Bypass Protocols, and Power Loss Recoverylecture
14Capstone Service Project: Capstone Project: Comprehensive Safety System Audit and Control Commissioningassignment

Syllabus

["Week 1: Lesson 1: Bridge Control Architectures, Schematics, and Operator Consoles", "Week 2: Lesson 2: Relay Logic, Interlocks, and Controller Inputs and Outputs", "Week 3: Lesson 3: Position Encoders, Resolvers, and Travel Limit Switch Arrays", "Week 4: Hands-on Lab: Sensor Calibration and Limit Switch Alignment Diagnostics", "Week 5: Lesson 5: Auto-Leveling Mechanical Linkages, Wheels, and Follow-Up Transducers", "Week 6: Lesson 6: Optical and Ultrasonic Proximity Sensing for Aircraft Approach", "Week 7: Lesson 7: Cab Rotation, Articulation Joints, and Canopy Actuation Controls", "Week 8: Hands-on Lab: Auto-Leveling Calibration and Aircraft Drift Simulation", "Week 9: Lesson 9: Aircraft Protection Systems: Sensitive Bumpers and Pressure Edges", "Week 10: Lesson 10: System Diagnostics, Fault Annunciation, and Event Logging Analysis", "Week 11: Hands-on Lab: Control Loop Troubleshooting and Safety Circuit Fault Isolation", "Week 12: Lesson 12: Wind Load Sensing, Environmental Interlocks, and Motion Alarms", "Week 13: Lesson 13: Emergency Stop Networks, Bypass Protocols, and Power Loss Recovery", "Week 14: Capstone Service Project: Capstone Project: Comprehensive Safety System Audit and Control Commissioning"]