What was found
AFTER TAKEOFF, LT MAIN RED GEAR REMAINED ON WITH GEAR HANDLE UP. FOLLOW QRH PROCEDURE. ADVISED DISPATCH FOR FUEL BURN AND CONSULTED WITH MECHANIC CONTROL. CONTINUED TO ACY AT REDUCED SPEED AND ALT. CHECKED GEAR UP AND DOWN PROX SENSORS WIRING RESISTANCE IAW MM32-60-00. FOUND TO BE WITHIN RANGE. SHOT DOWN GEAR UP AND DOWN, SENSOR HARNESS FROM SENSORS TO FWD W/W CONNECTORS. WHILE MONITORING INDICATION LIGHTS, NO DEFECTS NOTED. ITEM REMAINS OPEN FOR FURTHER INVESTIGATION.