What was found
DAY\CLE - FLT 3285 - GEAR WOULD NOT RETRACT AFTER TAKEOFF. AIRCRAFT AIR RETURNED TO DAY. MAINTENANCE SWAPPED LEFT UPLOCK 'A' AND 'B' SYSTEM CANNON PLUGS IAW SNL 120-032-0015. OPS CHECK GOOD. PLACED 'B' SYSTEM INDICATION ON MEL 32-60-01, CONTROL NR 769924. ON 1-21-95, MAINTENANCE REMOVED AND REPLACED LEFT 'A' UPLOCK PROX SENSOR, SWAPPED CONNECTORS BACK. OPS CHECK GOOD. REMOVED FROM MEL. (X)