NO. 1 EMERG ENG TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued)

NO. 1 EMERG ENG TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued) - TM-55-1520-240-T-1_351

NO. 1 EMERG ENG TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued) - TM-55-1520-240-T-1_353

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM 55-1520-240-1 4-6.6 NO. 1 EMERG ENG TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued) 4-6.6 OPEN NO 1 PDP CHECK FOR GROUND FAULT ON CB 103CB3 CIRCUIT SIDE TERM IS GROUND PRESENT? CHECK FOR GROUND FAULT ON EM ERG ENG TRIM PANEL ENGINE 1 INC. -DEC. SWITCH 103S3 TERM 1 IS GROUND PRESENT? Y ES REMOVE WIRE FROM RELAY 103K4 TERM A1 IS GROUND PRESENT? LOCATE GROUND FAULT BETWEEN RELAY 103K4 AND SWITCH 103S3 ON WIRES W 5 5 7 - 8 3 3 . 2 2 , W 6 4 5 - 3 3 1 - 22 0R W591-61-22 REPAIR OR REPLACE WIRE AS REQUIRED OPEN NO 1 ENGINE ACCESS DOORS DISCONNECT POWER TURBINE ACTUATOR PLUG CHECK FOR GROUND FAULT ON RELAY 103K4 TERM B2 IS GROUND PRESENT? REPLACE RELAY 103K4 DISCONNECT ENGINE TO AIRFRAME PLUG AT DISCONNECT SHELF IS GROUND STILL PRESENT ON RELAY 103K4 TERM B2? LOCATE GROUND FAULT BE TWEEN RELAY 103K4 AND DISCONNECT SHELF PLUG 300J33 ON WIRE W591-32- 22 REPAIR OR REPLACE WIRE AS REQUIRED NO REPLACE NO 1 ENGINE POWER TURBINE ACTUATOR REPLACE ENGINE TO AIRFRAME HARNESS LOCATE GROUND FAULT BETWEEN SWITCH 103S3 AND CB 103CB3 ON WIRES W550- 1 7 9 - 2 2 W 6 4 5 - 3 0 6 - 2 2 , W 5 5 7 - 828-22 OR W577-830-22 REPAIR OR REPLACE WIRE AS REQUIRED REPLACE NO 1 EMERGENCY ENGINE TRIM CB 103CB3 GO TO NEXT PAGE 4-132 Change 1

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