Damaged items should be reported to and viewed by the airport Baggage Service Office immediately after the arrival of your flight, but must be viewed by and reported in writing to United Airlines no later than four hours after flight arrival for flights within or between the United States, Guam, Puerto Rico and the U.S. Virgin Islands. For all other international flights, any damaged item must be reported in writing and must be substantiated by proof of claim acceptable to United no later than seven days after the flight's arrival. For information regarding damaged items, contact the airport Baggage Service Office where the damage was reported.