and getting the fuel burning you have to sustain the engines so it is a tricky maneuver. the singapore airlines said one engine regained power while pilots worked on the second. it is something they are trained to do and in all cases on all plane trz is a there is a point at which you don t try any more diving restarts just look for a place to set it down. this is the latest of several incidents involving asian airlines. flight 235 crashed into a river in thigh won. in december flight 8501 an airbus crashed into the java sea minutes after the pilot asked for clearance to climb in altitude to avoid bad weather.