singapore. they say one engine regained power while pilots worked on the second. >> that is something that they're trained to do. and in all cases on all planes there is a point at which the manuals say, don't try any more diving restarts. just look for a place to put it down and set it down. >> reporter: this is the latest of several >> reporter: this is the latest of several incidents involving asian airliners. in february both anyones on a transasia flight lost power. flight 235 crashed into a river in taiwan. in december airasia flight 8501 an airbus they 20 disappeared from radar and crashed into the java sea minutes after the pilot asked for clearance to climb in altitude to avoid bad weather. and malaysia airlines flight 370 from kuala lumpur to beijing disappeared without a trace more than a year ago. as for siege pore airlines this