Hi sir, thank you very much for your answer. I was the one who is asking for help about my friend who is missing since his flight from phnom pehn Cambodia to Kunming China last april 15, 2009 at 11:30 in the morning. At 11:24 that day he paged me that he already checked in thru china eastern. From that time on we don't have news about him already. Pls help me/share me some ideas on how to locate him as we are too far to ask the airports. Thank you very much again and more power.