TM 55-1520-240-T
CHAPTER 11
FLIGHT SYSTEM TROUBLESHOOTING
CHAPTER OVERVIEW
Chapter 11 contains procedures for Flight System troubleshooting. Each system and failure symptom is listed below. Included in this
chapter are locations and views of all electrical connectors, receptacles, relays, and ground connections for the Flight System.
Refer to TM 55-1520-240-23 for required maintenance procedures.
SYMPTOM
PARA
FLIGHT CONTROL SYSTEM
11-1
ARTIFICIAL FEEL - MAGNETIC BRAKES
11-2
ADVANCED FLIGHT CONTROLS SYSTEM (AFCS)
11-3
SYMPTOM
PARA
AFCS CONTROL PANEL
11-4
AFCS COMPUTER
11-5
COCKPIT CONTROL DRIVE ACTUATOR (CCDA)
11-6
FAILURE SYMPTOM LIST
ARTIFICIAL FEEL - MAGNETIC BRAKES
SYMPTOM
TASK
CONT CENTER CIRCUIT BREAKER DOES NOT STAY
CLOSED
11-2.3
CONTROL STICK AND PEDALS WILL NOT STAY
CENTERED AFTER PILOT'S CENTERING DEVICE RE-
LEASE SWITCH RELEASED
11-2.3
CONTROL STICK DOES NOT REMAIN AT SELECTED
POSITION
11-2.3
SYMPTOM
TASK
CONTROL STICK WILL NOT REMAIN AT SELECTED
POSITION AFTER COPILOT'S CENTERING DEVICE RE-
LEASE SWITCH RELEASED
11-2.3
COPILOT'S THRUST CONTROL DOES NOT EASILY
MOVE OR DOES NOT REMAIN AT SELECTED POSI-
TION
11-2.3
SYMPTOM
TASK
PEDALS DO NOT REMAIN AT SELECTED POSITION
11-2.3
PILOT'S THRUST CONTROL DOES NOT EASILY
MOVE OR DOES NOT REMAIN AT SELECTED POSI-
TION
11-2.3
THRUST BRAKE CIRCUIT BREAKER DOES NOT
STAY CLOSED
11-2.3
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Change 3 11-2.1
