As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW NOTED THAT THE LANDING GEAR WOULD NOT RAISE. THE PILOT BUMPED THE HANDLE AND THE GEAR CAME UP. IAH- MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR CONTROL LEVER, PERFORMED A OPERATIONAL CHECK, NO DEFECTS NOTED. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.