SYDNEY (Reuters) - A report into missing Malaysia Airlines Flight MH370 by the Australian safety investigator leading the search supports its view that the aircraft descended rapidly after running out of fuel with no human intervention, the agency said on Wednesday.
Flight MH370 disappeared in March 2014 en route to Beijing from Kuala Lumpur with 239 passengers and crew onboard in one of the world's greatest aviation mysteries.
The Australian Transport Safety Bureau (ATSB) report released on Wednesday said analysis of wing flap debris showed the aircraft was not configured for a landing.
It also said satellite communications from the aircraft were consistent with it being in a "high and increasing rate of descent" when it vanished, colloquially known as a death dive.
Voice370, a lobby group for the victims' families, said it was still hopeful that more countries would step forward to fund an extension and expansion of the search.
"We are very happy and glad that someone is taking initiative and we hope that the Malaysian and Chinese governments will come on board if they decide to extend the search area," Grace Subathirai Nathan, a lawyer whose mother was on the flight and is a spokeswoman for Voice370.
The 28-page report contains new end-of-flight and drift simulations that suggests experts believe the current search area is the most likely to contain the crash site. It coincides with the start of a three-day meeting of international experts to develop potential plans to continue the search.
ATSB search director Peter Foley told media on Wednesday that analysis of a wing flap had "enhanced certainty" at what had happened.
"It was probably in a non-extended position which means the aircraft wasn’t configured for a landing or a ditching," said Foley, referring to the practice of extending wing flaps to allow an aircraft to travel safely at slower speeds in preparation for a landing.
"You can draw your own conclusions as to whether that means someone was in control or not."
The question of whether there was human intervention during the descent is crucial because if the aircraft glided, the debris field could be outside the 120,000 sq km (46,330 sq mile) search zone which has almost been exhausted.
Authorities assume the plane had no "inputs" during its final descent, meaning there was no pilot or no conscious pilot. They believe it was on auto-pilot and spiralled when it ran out of fuel.
But the engineering group leading the search, Fugro, has previously raised the prospect someone could have glided the aircraft to explain why it has not been found.
Jason Middleton, head of aviation at the University of New South Wales, said the wing flap analysis was of limited benefit.
"It meant the pilot was not alert, awake or planning a safe landing - that's all it means," Middleton told Reuters.
He said the new drift simulations only showed the aircraft was "in that generic part of the ocean" that is being searched and did not help define a new search area in the Indian Ocean.
In a separate development, a lawyer for the families of four Australian victims told Reuters that Malaysia Airlines had agreed to release information about the missing plane as part of a compensation case.
John Dawson, a partner at Carneys Lawyers, said he had been advised he would receive the information by the end of the month. The information is to include the most recent medical certificates held by the flight crew.
"If MAS or the insurance company is releasing this information in Australia, either of their own volition or under a court order, then I don’t understand why the information shouldn’t also be released for the families in Malaysia," Subathirai Nathan said.
(Reporting by Jonathan Barrett and Colin Packham. Additional reporting by Rozanna Latiff in KUALA LUMPUR. Writing by Jane Wardell.; Editing by Michael Perry, Nick Macfie and Alison Williams)
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