What was found
IAH - FLIGHT 2272, THE CREW REPORTED A LANDING GEAR LEVER DISAGREE MESSAGE AND THE GEAR FAILED TO RETRACT ON TAKEOFF, AND FINALLY RETRACTED AFTER SEVERAL ATTEMPTS. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE REMOVED AND REPLACED THE NOSE LANDING GEAR WEIGHT ON WHEELS PROXIMITY SENSOR, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.