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