Flight MH370: Pilot Sullenberger on emergency priorities
14 March 2014 Last updated at 00:43 GMT
Captain Chesley Sullenberger, who saved lives by landing a plane in the Hudson River in New York in 2009, has spoken about the lost Malaysian airliner.
He told Newsnight there were clear priorities for a pilot in the event of a problem, which are "aviate, navigate and communicate, in that order".
The Malaysian plane went missing early on Saturday with 239 people on board. The search now includes the Indian Ocean.