What was found
IAH - FLT 3925 - AFTER TAKEOFF FROM SAV, ON GEAR RETRACTINO, THE CREW REPORTED A LEFT GEAR UNSAFE LIGHT AND A LANDING GEAR LEVER DISAGREE MESSAGE, THE CREW CYCLED THE GEAR AND ALL WARNINGS WENT AWAY. THE AIRCRAFT CONTINUED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT MLG UPLOCK BOX, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)