NO. 2 EMERGENCY ENGINE TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued)

NO. 2 EMERGENCY ENGINE TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued) - TM-55-1520-240-T-1_361

NO. 2 EMERGENCY ENGINE TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued) - TM-55-1520-240-T-1_363

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM 55-1520-240-T 4-6.9 NO. 2 EMERGENCY ENGINE TRIM CIRCUIT BREAKER WILL NOT STAY CLOSED (Continued) OPEN NO 2 PDP CHECK FOR GROUND FAULT ON CB 103CB3 CIRCUIT SIDE TERM IS GROUND PRESENT? CHECK FOR GROUND FAULT ON ENGINE TRIM PANEL ENGINE NO. 2 INC.-DEC. SWITCH 103S4 TERM 4 IS REMOVE WIRE FROM RELAY 103K3 A1 IS GROUND PRESENT? LOCATE GROUND FAULT BETWEEN RELAY 103K3 AND SWITCH 103S4 ON WIRE W 5 5 7 - 8 3 6 - 2 2 , W 6 3 9 - 3 2 1 - 22 OR W592-32-22 REPAIR OR REPLACE WIRE AS REQUIRED NO REPLACE RELAY 103K4 OPEN NO 2 ENGINE ACCESS DOORS DISCONNECT POWER TuRBINE ACTUATOR PLUG CHECK FOR GROUND FAULT ON RELAY 103K3 TERM A2 IS GROUND PRESENT? DISCONNECT ENGINE TO AIRFRAME PLUG AT DISCONNECT SHELF IS GROUND PRESENT? LOCATE GROUND FAULT BE TWEEN RELAY 103K3 AND SWITCH 103S4 ON WIRE 2 5 5 7 8 37 2 2 . W 6 3 9 - 3 2 2 - 22 OR W592 3322 REPAIR OR REPLACE WIRE AS REQUIRED NO REPLACE NO 2 ENGINE POWER TURBINE ACTUATOR 4-6.9 REPLACE NO 2 EMERGENCY ENGINE TRIM CB 103CB6 LOCATE GROUND FAULT BETWEEN SWITCH 103S4 AND CB 103CB6 ON W I R E W 5 5 2 - 1 6 7 - 2 2 , W 6 3 9 - 3 4 3 - 2 2 , W 5 5 7 - 827-22 OR W557-829-22 REPAIR OR REPLACE WIRE AS REQUIRED GO TO NEXT PAGE 4-142 Change 1

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