What was found
IAH - FLIGHT 2950, THE CREW REPORTED THAT THE LANDING GEAR NOSEGEAR RED B-INDICATION ILLUMINATED INTERMITTANTLY IN FLIGHT. MAINTENANCE INSPECTED AND CLEANED THE PROXIMITY SWITCH ON THE NOSE LANDING GEAR, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. THE DISCREPANCY REPEATED ON FLIGHT 3276 ON 01/09/01, WHERE MAINTENANCE CLEANED THE UPLOCK PROXIMITY SWITCHES, AND AGAIN ON FLIGHT 2945 WHERE MAINTENANCE PLACED THE ITEM ON MEL 32-60-1 CAT B CONTROL NR 003550. THE AIRCRAFT RETURNED TO IAH ON 01/10/01 AND MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR CONTROL MODULE, REMOVED THE MEL, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.