Military radar indicates that the missing Boeing 777 jet may have turned back before vanishing, Malaysia's air force chief said Sunday as authorities were investigating up to four passengers with suspicious identifications.
The revelations add to the uncertainties surrounding the final minutes of flight MH370, which was carrying 239 people — including two Canadians — when it lost contact with ground controllers somewhere between Malaysia and Vietnam after leaving Kuala Lumpur early Saturday morning for Beijing.
A massive international sea search has so far turned up no trace of the plane, which lost contact with the ground when the weather was fine, the plane was already cruising and the pilots didn't send a distress signal — unusual circumstance for a modern jetliner operated by a professional airline to crash.
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Vietnamese air force jets spotted two large oil slicks Saturday, but it was unclear if they were linked to the missing plane, and no debris was found nearby.
Flight manifest: Nationality of passengers
- China/Taiwan: 154 including infant.
- Malaysia: 38.
- India: 5
- Indonesia: 7.
- Australia: 6.
- France: 4.
- United States: 3 including infant.
- New Zealand: 2.
- Ukraine: 2.
- Canada: 2.
- Russian :1.
- Italy: 1.
- Netherlands: 1.
- Austrian: 1
Source: Malaysia Airlines statement
Air force chief Rodzali Daud didn't say which direction the plane might have taken or how long for when it apparently went off route.
"We are trying to make sense of this," he told a media conference. "The military radar indicated that the aircraft may have made a turn back and in some parts, this was corroborated by civilian radar."
Malaysia Airlines Chief Executive Ahmad Jauhari Yahya said pilots were supposed to inform the airline and traffic control authorities if the plane does a U-turn. "From what we have, there was no such distress signal or distress call per se, so we are equally puzzled," he said.
Authorities were checking on the suspect identities of at least two passengers who appear to have boarded with stolen passports. On Saturday, the foreign ministries in Italy and Austria said the names of two citizens listed on the flight's manifest matched the names on two passports reported stolen in Thailand.
This, and the sudden disappearance of the plane that experts say is consistent with a possible onboard explosion, strengthened existing concerns about terrorism as a possible cause for the disappearance. Al-Qaeda militants have used similar tactics to try and disguise their identities.
Malaysian Transport Minister Hishammuddin Hussein said that authorities were looking at two more possible cases of suspicious identities. He said Malaysian intelligence agencies were in contact with their international counterparts, including the FBI. He gave no more details.
"All the four names are with me and have been given to our intelligence agencies," he said. "We are looking at all possibilities."
Mining executive Muktesh Mukherjee and his wife Xiaomo Bai were identified as the two Canadian passengers on board the missing Malaysia Airlines aircraft. (Facebook)
A total of 22 aircraft and 40 ships have been deployed to the area by Malaysia, Thailand, Singapore, Indonesia, China and the United States, not counting Vietnam's fleet.
Two-thirds of the jet's passengers were Chinese. The rest were from elsewhere in Asia, North America and Europe.
Two Canadians were named in the flight manifest, released by the airline Saturday. They have been identified as Muktesh Mukherjee, 42, and, Xiaomo Bai, 37. The married couple had been on vacation in Vietnam. The airline told CBC News that family members of the two Canadians had been informed.
After more than 30 hours without contact with the aircraft, Malaysia Airlines told family members they should "prepare themselves for the worst," Hugh Dunleavy, the commercial director for the airline told reporters.
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Finding traces of an aircraft that disappears over sea can take days or longer, even with a sustained search effort. Depending on the circumstances of the crash, wreckage can be scattered over many square kilometres. If the plane enters the water before breaking up, there can be relatively little debris.
Plane in 'proper condition'
A team of American experts was en route to Asia to be ready to assist in the investigation into the crash. The team includes accident investigators from National Transportation Safety Board, as well as technical experts from the Federal Aviation Administration and Boeing, the safety board said in a statement.
Malaysia Airlines has a good safety record, as does the 777, which had not had a fatal crash in its 19-year history until an Asiana Airlines plane crashed last July in San Francisco, killing three passengers, all Chinese teenagers.
Investigators will need access to the flight data recorders to determine what happened.
The Beijing-bound plane went missing less than an hour after it took off from Kuala Lumpur. (CBC)
Aviation and terrorism experts said revelations about stolen passports would strengthen speculation of foul play. They also acknowledged other scenarios, including some catastrophic failure of the engines or structure of the plane, extreme turbulence or pilot error or even suicide, were also possible.
Jason Middleton, the head of the Sydney-based University of New South Wales' School of Aviation, said terrorism or some other form of foul play seemed a likely explanation.
"You're looking at some highly unexpected thing, and the only ones people can think of are basically foul play, being either a bomb or some immediate incapacitating of the pilots by someone doing the wrong thing and that might lead to an airplane going straight into the ocean," Middleton said. "With two stolen passports (on board), you'd have to suspect that that's one of the likely options."
Just 9 per cent of fatal accidents happen when a plane is at cruising altitude, according to a statistical summary of commercial jet accidents done by Boeing. Malaysia Airlines CEO Ahmad Jauhari Yahya said Saturday there was no indication the pilots had sent a distress signal.
The plane was last inspected 10 days ago and found to be "in proper condition," Ignatius Ong, CEO of Malaysia Airlines subsidiary Firefly airlines, said at a news conference.
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