TM 55-1520-240-T 16-214    Change 24       16-5.7  LANDING GEAR SWITCH STATUS LIGHT DOES NOT COME ON (Continued)      16-5.7 DOES LAMP ILLUMINATE DURING PRESS-TO-TEST? DISCONNECT PLUG 147P4 FROM REMOTE BYPASS SWITCH PANEL.  IS 28 VDC PRESENT ON PIN C? REPAIR/REPLACE FAULTY WIRING/ COMPONENT ON REMOTE BYPASS SWITCH PANEL. PLACE LDG GEAR BYPASS SWITCH TO BYPASS. DOES LIGHT COME ON? GO TO TASK 16-5.6. DISCONNECT PLUG 300P52 LOCATED AT STA. 460L OVERHEAD.   IS CONTINUITY PRESENT FROM 147K1 TERMINAL B1 TO 300P52 PIN 48? IS GROUND PRESENT ON RELAY 147K1 TERMINAL X1? REPAIR FAULTY CONDITION OF WIRE W668-178-20. REMOVE AND REPLACE FAULTY RELAY 147K1. YES REPAIR FAULTY CONDITION OF WIRE W697-161-20. OPEN LEFT ELECTRICAL COMPARTMENT DOOR.  IS 28 VDC PRESENT ON RELAY 147K1 TERMINAL B2? IS CONTINUITY PRESENT BETWEEN RELAY 147K1 TERMINAL B1 AND PLUG 147P4 PIN C? CORRECT OPEN CONDITION ON WIRE W697-158-20. YES NO NO REPAIR/REPLACE FAULTY WIRING BETWEEN 147K1 TERM. X1 & 148K2 TERM. C2 (RH LANDIN GEAR). NO YES NO NO YES YES NO YES NO YES FAULT CORRECTED. G END OF TASK