TM 55-1520-240-23-T
16-210 Change 24
16-5.5 LANDING GEAR SWITCH STATUS LIGHT IS ON (Continued)
16-5.5
ON REMOTE BYPASS SW
PANEL, SET LDG GR BYP
SWITCH TO NORMAL. DID
LDG GR SW LIGHT GO
OUT?
FAULT CORRECTED.
END OF TASK
YES
NO
DISCONNECT PLUG 147P4
FROM REMOTE BYPASS SW
PANEL. CHECK FOR 28VDC
ON PIN C. IS 28 VDC
PRESENT?
CHECK WIRE NUMBERS
W668-179-20, W668-180-20,
W668-154-20, AND ALE47-
033A22 FOR FAULTY
CONDITION AND REPAIR AS
REQUIRED. IS GROUND
STILL PRESENT?
DISCONNECT PLUG 147P34
FROM ALE-47
PROGRAMMER. IS GROUND
STILL PRESENT?
IS GROUND PRESENT ON
PLUG 147P4 PIN D?
DISCONNECT PLUG 300P52.
IS GROUND STILL PRESENT?
REPAIR/REPLACE FAULTY
WIRING/ COMPONENT ON
REMOTE BYPASS SW
PANEL.
IS CONTINUITY PRESENT
ON PLUG 147J4 PINS D TO
E OR PINS D TO A?
OPEN LEFT ELECTRICAL
COMPARTMENT DOOR.
CHECK RELAY147K1 AND
ASSOCIATED WIRING FOR
GROUND FAULT CONDITIONS;
REPAIR/ REPLACE AS
REQUIRED.
REMOVE AND
REPLACE RELAY
148K2.
YES
YES
YES
YES
YES
FAULT CORRECTED.
REMOVE AND REPLACE
ALE-47 PROGRAMMER.
NO
NO
NO
NO
NO
YES
