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ENGINE   NO.   1   TRIM   CIRCUIT   BREAKER   WILL   NOT   STAY   CLOSED   (Continued) - TM-55-1520-240-T-1_345
ENGINE   NO.   1   TRIM   CIRCUIT   BREAKER   WILL   NOT   STAY   CLOSED   (Continued) - TM-55-1520-240-T-1_347

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM   55-1520-240-T 4-6.4   ENGINE   NO.   1   TRIM   CIRCUIT   BREAKER   WILL   NOT   STAY   CLOSED   (Continued) 4 - 6 .4 REMOVE COPILOT’S FLOOR PANEL. DISCONNECT CO- PILOT’S THRUST GRIP PLUG.  CHECK  FOR  GROUND ON TB 18 TERM 12. IS GROUND  PRESENT? 4-126 YES REMOVE PILOT’S FLOOR PANEL. DISCONNECT Pl- LOT’S THRUST GRIP PLUG. CHECK  FOP.  GROUND  ON  TB 18 TERM 12. IS GROUND PRESENT? YES OPEN  LEFT  ELECTRICAL COMPARTMENT.  REMOVE WIRE FROM RELAY 103K1 TERM X1. IS GROUND PRE- SENT ON WIRE? NO CHECK  FOR  GROUND  ON RELAY 103K1 TERM X1. IS GROUND  PRESENT? NO REPAIR  OR  REPLACE  CO- PILOT’S THRUST GRIP. REPAIR OR REPLACE Pl- LOT’S THRUST GRIP. LOCATE  GROUND  FAULT BETWEEN 103K1, 300J26, AND  300J21  ON  WIRES YES W696-43-22  OR  W696-48- 22 OR W645-314-22 OR W591 -26-22. REPAIR OR REPLACE WIRE AS RE- QUIRED. DISCONNECT WIRE FROM RELAY 103K1 TERM A2. IS GROUND   PRESENT? DISCONNECT PLUG 103P1 AT NO. 1 ENGINE CONTROL BOX. CHECK FOR GROUND ON PLUG 103P1 PIN A. IS GROUND   PRESENT? REPLACE RELAY 103K1. REPLACE RELAY 103K1. Change  2 LOCATE  GROUND  FAULT ON WIRE W591-25-22 BE- TWEEN PLUG 103P1 AND RELAY 103K1. REPAIR OR REPLACE WIRE AS RE- QUIRED. GO TO NEXT PAGE







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