What was found
SEA - DURING CLIMB, CRUISE AND DESCENT 'WT ON WHEELS' "CAUTION ILLUMINATED FOR 30 SECS THAN WOULD CYCLE ON/OFF EVERY COUPLE MINUTES. GEAR RETRACTED AND EXTENDED NORMALLY. LANDING WT WAS 47,000. RETURN TO FIELD. REMOVED L MLG PROXIMITY SENSOR NR 1 IAW AMM TASK 32-61-06-000-802. INSTALLED NEW PROXIMITY SENSOR FROM STOCK IN L MLG POSITION NR 1 IAW AMM TASK 32-61-06-400-802. RIGGED PROXIMITY SENSOR IAW AMM TASK 32-61-06-830-801 SENSORS. PSEU INDICATES CORRECT VALUES FOR BOTH "NEAR" AND "FAR". NO FURTHER DEFECTS NOTED. RETURN TO SERVICE.