TM 55-1520-240-T
S Y M P T OM
TASK
CONSOLE CIRCUIT BREAKER DOES NOT STAY
CLOSED
BARO ALT SWITCH CAPTION DOES NOT LIGHT
BRIGHT WHEN PRESSED
CONSOLE CIRCUIT BREAKER WILL NOT STAY
CLOSED
FLOOD LIGHTS ON INSTR PANEL AND OVERHEAD
PANEL AND LIGHTS ON PILOT AND COPILOT’S
TURN AND SLIP INDICATORS DO NOT COME ON
INSTR FLOOD LIGHTING CIRCUIT BREAKER WILL
NOT STAY CLOSED
ALL FLOOD LIGHTS DO NOT COME ON WHEN PLT
INST LIGHT CONTROL SET TO OFF
CKPT DIM CONT CIRCUIT BREAKER WILL NOT
STAY CLOSED
COCKPIT DOME CIRCUIT BREAKER DOES NOT STAY
CLOSED
COCKPIT DOME RED LIGHT OR LIGHTS DO NOT
COME ON
COCKPIT DOME CIRCUIT BREAKER DOES NOT STAY
CLOSED
COCKPIT DOME NVG LIGHT OR LIGHTS DO NOT
COME ON
9-12.3
9-12.8
9-12.8
9-13.3
9-13.3
9-13.12
9-13.12
9-14.3
9-14.3
9-14.10
9-14.10
FAILURE SYMPTOM LIST (Continued)
S Y M P T O M
TASK
S Y M P T OM
TASK
CONSOLE PANEL LIGHTS (WITHOUT )
CONSOLE PANEL LIGHT OR LIGHTS NOT LIT
9-12.3
CONSOLE PANEL LIGHTS (WITH )
CONSOLE PANEL LIGHT OR LIGHTS NOT LIT
9-12.8
ILLUM SW PWR CIRCUIT BREAKER WILL NOT STAY
CLOSED
9-12.8
LONGITUDINAL STICK INDICATOR NOT LIT
9-12.8
SECONDARY COCKPIT LIGHTS (WITHOUT )
INSTR PANEL, CONSOLE, OR OVERHEAD PANEL
FLOOD LIGHTS WILL NOT COME ON
9-13.3
NO. 1 DC BUS CONTROL CIRCUIT BREAKER WILL
NOT STAY CLOSED
9-13.3
PILOT AND COPILOT’S TURN AND SLIP INDICATOR
LIGHTS VARY IN BRIGHTNESS
9-13.3
SECONDARY COCKPIT LIGHTS (WITH )
INSTR FLOOD LIGHTING CIRCUIT BREAKER WILL
NOT STAY CLOSED
9-13.12
INSTR PANEL OR OVERHEAD PANEL FLOOD LIGHTS
WILL NOT COME ON
9-13.12
COCKPIT DOME AND UTILITY LIGHTS (WITHOUT )
COCKPIT DOME WHITE LIGHT OR LIGHTS DO NOT
COME ON
9-14.3
COCKPIT DOME AND UTILITY LIGHTS (WITH )
COCKPIT DOME WHITE LIGHT OR LIGHTS DO NOT
COME
9-14.10
RAD ALT SWITCH CAPTION DOES NOT LIGHT DIM
WHEN PRESSED
9-12.8
PILOT OR COPILOT’S TURN AND SLIP INDICATOR
LIGHTS OR OVERHEAD PANEL FLOOD LIGHTS DO
NOT COME ON
9-13.3
UTILITY LIGHT OR LIGHTS DO NOT COME ON
UTILITY LIGHT OR LIGHTS DO NOT COME ON
9-14.3
9-14.10
GO TO NEXT PAGE
9-2.4
Change 2
