What was found
(CAN) ALL LDG RED LIGHT REMAINED ILLUMINATED AFTER GEAR SELECTED UP. 3 GREEN LIGHTS CONFIRMED ON LDG ALTERNATE EXTENSION PANEL. AFTER GEAR DOWN SELECTED, NORMAL INDICATION CONFIRMED. ATB CARRIED OUT. MAINTENANCE FOUND NOSE CENTERING SENSOR FAR FAULT CODE IN THE PSEU. NWS RVDT FOUND FAULTY CAUSING NLG TO BE OFF CENTER. RVDT REPLACED, RIGGING AND FUNCTION CHECKS CARRIED OUT, A/C RTS. (TC# 20190422006)