Expectations of finding debris played down

20:54, Mar 21 2014
The MH370 story in pictures
The saga begins on March 8, when Malaysia Airlines Flight MH370 departs Kuala Lumpur at 12:41am, local time. On board are 227 passengers and 12 crew.
The MH370 story in pictures
Captaining the flight of the Boeing 777-200 is 53-year old Zaharie Ahmad Shah, shown here on the right.
The MH370 story in pictures
At 1:21am the MH370's transponder stops signalling, halting the regular responses it usually gives to radar signals. The plane makes a series of strange but controlled movements, turning west sharply, then climbing above its designed height limit and back down.
The MH370 story in pictures
At 1.30am, on point 4, the plane is spotted for the last time on civilian radar. At 2.15am, on point 5, military radar spots it, although it is not clear at the time that this was MH370. Satellite data suggests the plane could also have angled towards point 6.
The MH370 story in pictures
At 6.32am air traffic control in Kuala Lumpur sends a radio signal on an emergency channel asking MH370 to contact them. The plane is now overdue at Beijing Airport, shown.
The MH370 story in pictures
Relatives of passengers despair, and the search begins.
The MH370 story in pictures
International news media focus on the story immediately.
The MH370 story in pictures
Multiple false leads pop up, like this oil spotted by a Vietnamese search plane.
The MH370 story in pictures
Malaysian government and airline officials have released confusing and contradictory information. Here, Malaysian Airlines CEO Ahmad Jauhari Yahya, left, and Department of Civil Aviation director general Datuk Azharuddin Abdul Rahman take questions at a press conference.
The MH370 story in pictures
Concerns are raised when it becomes apparent that two Iranian men, shown here, boarded the plane with stolen passports. Interpol rejects the suggestion of terrorism, however, concluding the men were probably asylum seekers.
The MH370 story in pictures
The search intensifies, covering new areas with a wide array of international support.
The MH370 story in pictures
The search intensifies, covering new areas with a wide array of international support.
The MH370 story in pictures
The search intensifies, covering new areas with a wide array of international support.
The MH370 story in pictures
The search intensifies, covering new areas with a wide array of international support.
The MH370 story in pictures
The search intensifies, covering new areas with a wide array of international support.
The MH370 story in pictures
Outpourings of grief and support are expressed worldwide.
The MH370 story in pictures
Outpourings of grief and support are expressed worldwide.
The MH370 story in pictures
Outpourings of grief and support are expressed worldwide.
The MH370 story in pictures
Outpourings of grief and support are expressed worldwide.
The MH370 story in pictures
Outpourings of grief and support are expressed worldwide.
The MH370 story in pictures
The anguish of the relatives is palpable.
The MH370 story in pictures
The anguish of the relatives is palpable.
The MH370 story in pictures
The anguish of the relatives is palpable.
The MH370 story in pictures
The anguish of the relatives is palpable.
The MH370 story in pictures
Theories abound. Fellow pilot Chris Goodfellow has suggested that a tyre may have caught fire, causing the pilots to turn towards the closest suitable airport, with the rapid ascent and descent perhaps representing an attempt to extinguish the fire. Critics of this theory have pointed out that the change in path was programmed into the plane's computer 12 minutes before the calm toned "good night" transmission, suggesting the change in course was planned.
The MH370 story in pictures
Given the amount of fuel on board, the plane could have made it as far north as Kazakhstan, on a possible flight path shown in orange.
The MH370 story in pictures
Or somewhere southwest of Australia, on a possible flight path shown in orange.
The MH370 story in pictures
Others have speculated that the pilot or co-pilot may have intentionally crashed the plane. The FBI is trying to restore deleted simulator-flights from Pilot Zaharie Ahmad Shah's computer – but these could be innocuous. Critics of the crash theory say neither the pilot nor co-pilot had ever expressed any kind of radical sentiment or displayed mental issues, and both possessed adequate flying experience.
The MH370 story in pictures
The ever-present worry of terrorism remains. No groups have claimed responsibility for the incident, and a political motivation is unclear - but that doesn't rule it out.
MH370
On March 20, Australian Prime Minister Tony Abbott told his parliament that objects had been spotted in waters hundreds of kilometres off the western Australian coast. Further searches, by Australian, New Zealand and US planes, were needed to find out if they were part of the missing plane.
Perth
The crew of one of two Chinese Air Force Ilyushin Il-76 aircraft used in the search for Malaysia Airlines flight MH370 walk away from their plane in Perth.
MH370 search
Thirty-eight days after the plane went missing, an Australian navy ship is guided into position by a Royal New Zealand Airforce P-3K2 Orion aircraft. Officials say they will deploy an underwater robot to aid in the hunt.
MH370
Announcing that an underwater drone will be deployed imminently, Joint Agency Co-ordination Centre chief Angus Houston says an oil slick has been detected in the search area for the missing plane.

Search planes scoured a remote patch of the Indian Ocean but came back empty-handed after a 10-hour mission looking for any sign of the missing Malaysia Airlines jet, another disappointing day in one of the world's biggest aviation mysteries.

Australian officials pledged to continue the search for two large objects spotted by a satellite earlier this week, which had raised hopes that the two-week hunt for the Boeing 777 that disappeared March 8 with 239 people on board was nearing a breakthrough.

But Australia's acting prime minister, Warren Truss, tamped down expectations.

Plane search
NOTHING FOUND: Expectations of finding debris first spotted on satellite played down by Australian official.

"Something that was floating on the sea that long ago may no longer be floating - it may have slipped to the bottom," he said. "It's also certain that any debris or other material would have moved a significant distance over that time, potentially hundreds of kilometers."

In Kuala Lumpur, where the plane took off for Beijing, Malaysia's defense minister thanked the more than two dozen countries involved in the search that stretches from Kazakhstan in Central Asia to the southern Indian Ocean, and said the focus remains on finding the airplane.

"This going to be a long haul," Hishammuddin Hussein told a news conference.

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The search area indicated by the satellite images - some 2,500 kilometers (1,550 miles) southwest of Perth - is a four-hour round-trip flight, leaving planes with only enough fuel to search for about two hours.

On Friday, five planes, including three P-3 Orions, made the trip. While search conditions had improved from Thursday, with much better visibility, the Australian Maritime Safety Authority said there were no sightings of plane debris.

Searchers relied mostly on trained spotters aboard the planes rather than radar because radar found nothing in the first day of the search Thursday, Australian officials said.

The search will focus more on visual sightings because civilian aircraft are being brought in. The military planes will continue to use both radar and spotters.

"Noting that we got no radar detections yesterday, we have replanned the search to be visual. So aircraft flying relatively low, very highly skilled and trained observers looking out of the aircraft windows and looking to see objects," said John Young, manager of the maritime safety authority's emergency response division.

Two Chinese aircraft are expected to arrive in Perth on Saturday to join the search, and two Japanese aircraft will arrive Sunday, Truss said. A small flotilla of ships coming to Australia from China was still several days away.

"We are doing all that we can, devoting all the resources we can and we will not give up until all of the options have been exhausted," said Truss, who is acting prime minister while Tony Abbott is in Papua New Guinea.

There is a limited battery life for the beacons in the cockpit-voice and flight-data recorders - about 30 days, said Chuck Schofield, vice president of business development for Radiant Power Corp. He said it's "very likely" that his company made the beacons on the missing jet.

The devices work to a depth of 20,000 feet, with a signal range of about two nautical miles, depending on variables like sea conditions. The signals are located using a device operated on the surface of the water or towed to a depth.

Experts say it is impossible to tell if the grainy satellite images of the two objects - one 24 meters (almost 80 feet) long and the other measuring 5 meters (15 feet) - were debris from the plane. But officials have called this the best lead so far in the search that began March 8 after the plane vanished over the Gulf of Thailand on an overnight flight to Beijing.

For relatives of the people aboard the plane - 154 of the 227 passengers are Chinese - hope was slipping away, said Nan Jinyan, sister-in-law of passenger Yan Ling.

"I'm psychologically prepared for the worst and I know the chances of them coming back alive are extremely small," said Nan, one of dozens of relatives gathered at a Beijing hotel awaiting any word about their loved ones.

Abbott spoke with Chinese President Xi Jinping, whom he described as "devastated."

"It's about the most inaccessible spot that you could imagine on the face of the Earth, but if there is anything down there we will find it," Abbott said.

"We owe it to the families and the friends and the loved ones of the almost 240 people on Flight MH370 to do everything we can to try to resolve what is as yet an extraordinary riddle." He added.

The Norwegian cargo vessel Hoegh St. Petersburg is also in the area helping with the search.

Haakon Svane, a spokesman for the Norwegian Shipowners' Association, said the ship had searched a strip of ocean stretching about 100 nautical miles (115 miles; 185 kilometers) using binoculars and unaided eyes.

"The visual observations are the most important. The fact that they are there and have the capacity to move in a specific pattern is the most important contribution," he said.

The Australian Maritime Safety Authority said another commercial ship also was in the area and an Australian navy vessel was en route. AMSA officials also were checking to see if there was any new satellite imagery that could provide searchers with more information.

Aircraft pieces have been found floating for days after a sea crash. Peter Marosszeky, an aviation expert at the University of New South Wales, said the wing could remain buoyant for weeks if the fuel tanks inside were empty and had not filled with water.

Other experts said that if the aircraft breaks into pieces, normally only items such as seats and luggage would remain floating.

"We seldom see big metal (pieces) floating. You need a lot of (buoyant) material underneath the metal to keep it up," said Lau Kin-tak, an expert in aircraft maintenance and accidents at Hong Kong Polytechnic University.

The anguished relatives of passengers met Friday with Malaysian officials at the Beijing hotel. Attendees said they had a two-hour briefing about the search but that nothing new was said.

Wang Zhen, son of missing artist Wang Linshi, said there were questions about why Malaysian authorities had provided so much seemingly contradictory information.

Wang said he still has hopes his father can be found alive and is praying that the satellite sightings turn out to be false. He said he and other relatives are suspicious about what they are being told by the Malaysian side but are at a loss as to what to do next.

"We feel they're hiding something from us," said Wang, who is filling his days attending briefings and watching the news for updates.

Malaysian authorities have not ruled out any possible explanation for what happened to the jet but have said the evidence so far suggests it was deliberately turned back across Malaysia to the Strait of Malacca, with its communications systems disabled. They are unsure what happened next.

Police are considering the possibilities of hijacking, sabotage, terrorism or issues related to the mental health of the pilots or anyone else on board.

AP