TM 55-1520-240-T
4-6.6 NO. 1 EM ERG ENG TRIM CIRCUIT BREAKER WILL
NOT STAY CLOSED (Continued)
W A S E M E R G E N G T R IM
PANEL SWITCH SET TO INC.
OR D E C .7
YES
R E M O V E EMERG ENG TRIM
PANEL FROM CONSOLE
C HECK FOR G R O U N D F A u L T
ON ENGINE 1 INC., DEC.
SWITCH 103S3 TERM 3 IS
GROUND
PRESENT?
YES
OPEN LH ELECTRICAL
COMPARTMENT
REMOVE
WIRE FROM RELAY 103K4
TERM B1 IS GROUND
PRESENT?
YES
LOCATE GROUND FAULT
BETWEEN RELAY 103K4 AND
SWITCH 103S3 ON WIRES
W 5 5 7 - 8 3 2 - 2 2 , W 6 4 5 - 3 0 7 - 22
OR W591-59-22 REPAIR OR
REPLACE WIRE AS REQUIRED
NO
NO
NO
REPLACE RELAY 103K4
C H E C K F O R G R O U N D F AU LT
ON EM ERG ENG TRIM P A N E L
ENGINE 1 INC.-DEC. S W I T CH
103S3 TERM 4 IS GROUND
DISCONNECT WIRE FROM
RELAY
103K4
TERMX1
IS
GROUND PRESENT?
LOCATE GROUND FAULT
BETWEEN RELAY 103K4 AND
S W I T C H 1 0 3 s 3 O N W I RE
W 5 5 7 - 8 3 4 2 2 , W 5 5 7 8 3 5 - 2 2
W645-330-22 OR W591-62-
22 REPAIR OR REPLACE WIRE
AS REQUIRED
4 - 6 . 6
NO
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