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