More than 105,000 sq km of seafloor in the southern Indian Ocean has been searched as of 11 May, leaving a remaining search area of just 15,000 sq km.
Martin Dolan, the head of the Australian Transport Safety Bureau (ATSB), said there were still “good prospects” of finding the plane on the seafloor yet to be searched, with 15,000 sq km about the equivalent of the greater Sydney area.
But he acknowledged the increasingly likely outcome that the plane will not be found.