TM 55-1520-240-T Change 24     16-2.2.1/(16-2.2.2 blank) FAILURE SYMPTOM LIST (Continued) HEAD UP DISPLAY SYSTEM (Continued) SYMPTOM TASK CANNOT CYCLE THROUGH PILOT’S MODE SELECTION AT CCU OR PILOT’S THRUSTER GRIP HUD CONTROL SWITCH 16-4.25 CANNOT CYCLE THROUGH PILOT’S DECLUTTER AT CCU OR PILOT’S THRUSTER GRIP HUD CONTROL SWITCH 16-4.26 SYMPTOM TASK CANNOT CYCLE THROUGH COPILOT’S MODE SELECTION AT CCU OR COPILOT’S THRUSTER GRIP HUD CONTROL SWITCH 16-4.27 CANNOT CYCLE THROUGH COPILOT’S DECLUTTER AT CCU OR COPILOT’S THRUSTER GRIP HUD CONTROL SWITCH 16-4.28 SYMPTOM TASK NO OR IMPROPER ALTITUDE (MSL) OR AIRSPEED DISPLAYED 16-4.29 NO OR IMPROPER TRIM (SLIDE BALL) DISPLAYED 16-4-30 COUNTERMEASURES DISPENSER SYSTEM SYMPTOM TASK DCDU CIRCUIT BREAKER WILL NOT STAY CLOSED 16-5.4 LANDING GEAR SWITCH STATUS LIGHT IS ON 16-5.5 LANDING GEAR SWITCH STATUS, READY TO FIRE, OR LANDING GEAR BYPASS LIGHTS DO NOT LIGHT DURING PRESS TO TEST 16-5.6 LANDING GEAR SWITCH STATUS LIGHT DOES NOT COME ON 16-5.7 SYMPTOM TASK READY TO FIRE LIGHT DOES NOT COME ON 16-5.8 COUNTERMEASURES DISPENSER TEST SET DOES NOT INDICATE A FIRED EXPENDABLE WHEN COPILOT’S FLARE DISP SWITCH IS PRESSED 16-5.9 COUNTERMEASURES DISPENSER TEST SET DOES NOT INDICATE A FIRED EXPENDABLE WHEN PILOT’S FLARE DISP SWITCH IS PRESSED 16-5.10 SYMPTOM TASK COUNTERMEASURES DISPENSER TEST SET DOES NOT INDICATE A FIRED EXPENDABLE WHEN ONE CREW DISPENSE SWITCH IS PRESSED 16-5.11 DCDU DISPLAYS INCORRECT QUANTITY OF EXPENDABLES 16-5.12 LANDING GEAR BYPASS SWITCH LIGHT DOES NOT COME ON 16-5.13 GO TO NEXT PAGE