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EgyptAir crash: Inquiry into why Flight MS804 vanished

media captionThe flight was just 20 minutes from landing at Cairo International Airport, from where Quentin Sommerville reports
A major investigation is under way after an EgyptAir passenger jet disappeared over the Mediterranean.
Flight MS804 was travelling from Paris to Cairo with 66 passengers and crew when it vanished early on Thursday.
Greece's defence minister said radar showed the Airbus A320 had made two sharp turns and dropped more than 25,000ft before plunging into the sea.
Egypt says the plane was more likely to have been brought down by a terrorist act than a technical fault.
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A major search operation involving Egyptian, Greek, French and British military units is taking place near the Greek island of Karpathos.
So far, no wreckage or debris from the aircraft has been found.
Greece's lead air accident investigator Athanasios Binis said items including lifejackets found near Karpathos were not from the Airbus A320.
"An assessment of the finds showed that they do not belong to an aircraft," he said.
Egyptian aviation officials initially said the debris was from the plane, but later reports indicated they had retracted that statement.
Most of the people on board Flight MS804 were from Egypt and France. A Briton was also among the passengers.
Egyptian President Abdel Fattah al-Sisi has ordered the country's civil aviation ministry, army-run search-and-rescue centre, navy and air force to take all necessary measures to locate the wreckage.
His office said he had also ordered aviation officials to immediately launch an investigation into the causes of the disappearance.
The French air accident investigation bureau has despatched three investigators, along with a technical adviser from Airbus, to join the inquiry.

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Flight MS804 left at 23:09 local time on Wednesday (21:09 GMT) and was scheduled to arrive in the Egyptian capital soon after 03:15 local time on Thursday.
On the plane were 56 passengers, seven crew members and three security personnel.
Greek aviation officials say air traffic controllers spoke to the pilot when he entered Greek airspace and everything appeared normal.
They tried to contact him again at 02:27 Cairo time, as the plane was set to enter Egyptian airspace, but "despite repeated calls, the aircraft did not respond". Two minutes later it vanished from radar.
media captionWhat happened to flight MS804? Richard Westcott examines the evidence so far
Greek Defence Minister Panos Kammenos told reporters: "The picture we have at the moment on the accident as it emerges from the Greek air force operations centre is that the aircraft was approximately 10-15 miles inside the Egyptian FIR [flight information region] and at an altitude of 37,000 feet.
"It turned 90 degrees left and then a 360-degree turn toward the right, dropping from 37,000 to 15,000 feet and then it was lost at about 10,000 feet."
Egyptian Aviation Minister Sherif Fathi said: "Let's not try to jump to the side that is trying to identify this as a technical failure - on the contrary.
"If you analyse the situation properly, the possibility of having a different action, or having a terror attack, is higher than the possibility of having a technical [fault]."
In October an Airbus A321 operated by Russia's Metrojet blew up over Egypt's Sinai Peninsula, with the deaths of all 224 people on board. Sinai Province, a local affiliate of the Islamic State jihadist group, said it had smuggled a bomb on board.
French President Francois Hollande said: "We will draw conclusions when we have the truth about what happened.
"Whether it was an accident, or whether it was - and it's something that is on our minds - terrorism."

Far too early to say: By Richard Westcott, BBC transport correspondent

An Egyptian aircraft disappearing without a Mayday signal is bound to raise the spectre of terrorism. But the truth is it is far too early to say why this plane vanished.
Whatever happened, it happened too quickly for the crew to raise the alarm.
Initially, the aircraft seemed to drop off the radar at 37,000 feet, suggesting a sudden break-up. It's very rare for modern planes to simply break apart in mid air, but not impossible.
But then the Greek defence minister described the aircraft making sharp turns and dropping height quickly. Which suggests it was intact for longer.
Either way, it does not rule out either an accident, or something more sinister.
Even in the worst emergencies, pilots tell me they should have time to call for help, once they've got to grips with the problem. But not always.
Flightradar24 listed details of the plane's journey on Wednesday which showed it had flown from Asmara, in Eritrea, to Cairo, then on to Tunis, in Tunisia, before heading, via Cairo, to Paris.
Aviation analyst Alex Macheras told the BBC that Airbus A320s were regularly used for short-haul budget flights and had "an amazing safety record".
media captionIan Petchenik from Flightradar24 explains how planes are tracked
In March, an EgyptAir plane was hijacked and diverted to Cyprus. The attacker later surrendered and all hostages were released.
If anyone is concerned about relatives or friends following the disappearance of the flight, they can call this free number provided by EgyptAir: +202 259 89320.
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