In another setback to the search for the crashed Malaysian jet, the second mission of the underwater drone being used to locate the plane's wreckage was aborted on Wednesday due to a "technical" trouble as it resurfaced without making any "significant detections".
Relatives of the passengers of the doomed Malaysian Airlines Flight MH370, that vanished mysteriously eight-months ago with 239 people on board, have expressed shock after a senior airline official reportedly said that the plane would be declared "lost" by the year end.
A pinger locator has detected signals consistent with those emitted by aircraft black boxes, raising hopes of finding the missing Malaysia Airlines plane a month after it mysteriously disappeared en route to China.
After its first attempt to find the missing MH370 plane yielded no results, the underwater drone being used to locate the wreckage was back in the waters on Wednesday scouring the depths of the Indian Ocean seabed.
Search ships on Tuesday failed to detect any more underwater pulses after signals possibly from the missing Malaysian jet were recorded over the weekend, even as investigators were racing against time to locate the black box of the ill-fated aircraft before its beacons fall silent.
The hunt for the crashed Malaysian jet on Saturday entered its 50th day with a robotic mini-submarine having scoured about 95 per cent of the search area so far with still no sign of any wreckage.
A former Australian defence official, who headed the search for the missing Malaysian jet MH370 in the Indian Ocean, will lead Australia's MH17 plane investigation and recovery operation in Ukraine.
The search for the missing Flight MH370 will now revert to an area hundreds of kilometers south of the first suspected crash site, an official said on Friday, as months of fruitless scouring in the Indian Ocean has failed to crack the unprecedented aviation mystery.
The robotic mini-submarine deployed to search for the crashed MH370's debris on Thursday resumed the hunt after eight days of suspended operations ahead of its final week of scouring the Indian Ocean seabed, which will now be mapped to locate the final resting place of the jet.
A robotic mini-submarine deployed to unprecedented depths has searched approximately 50 per cent of the focused underwater area of the Indian Ocean floor, as it ended its seventh mission on Sunday with still no sign of wreckage of the missing Malaysia Airlines plane.
The searchers hunting for the missing Malaysian jet are "very confident" that a series of underwater signals detected in a remote part of the Indian Ocean were from the aircraft's black box, the Australian prime minister said on Friday.
The search for the crashed Malaysian jet continued on Friday even as Malaysia's prime minister said his government will release its preliminary report on the plane's disappearance next week.
A metal object found on a beach in Western Australia does not belong to a Malaysian jet that vanished nearly seven weeks ago, authorities said on Thursday even as a robotic mini-submarine scouring the Indian Ocean seabed scanned more than 90 per cent of the focused search area.
Air search operations to hunt for the crashed MH370 were suspended on Tuesday due to a tropical cyclone heading south over the Indian Ocean, as a robotic mini-submarine neared completion of its underwater search with no sign of wreckage.
Autonomous underwater vehicle Bluefin 21, a US Navy probe equipped with side-scan sonar, has focused the search on an area in the southern Indian Ocean where four acoustic signals were detected that led authorities to believe that the plane's black box may be located there.
A mini-submarine deployed to locate the missing Malaysian plane's wreckage on the floor of the Indian Ocean has completed a full 16-hour mission mission at its third attempt, authorities said.
The search for the crashed Malaysian jet continued on Sunday with 10 aircraft and eight ships tasked to scour the Indian Ocean, after early sightings in the new search zone drew a blank.
A robotic mini-submarine deployed to unprecedented depths underwater to hunt for the crashed Malaysian airliner has searched nearly two-thirds of the focused area of the Indian Ocean floor, as it ended its eighth mission on Monday with still no sign of any wreckage of the plane.
Multi-nation search teams hunting for the missing Malaysian plane said they will stop listening for pings coming from the floor of the Indian Ocean and now deploy an unmanned submarine to track down the jet's black box.
An Australian aircraft searching for the crashed Malaysian plane on Thursday detected a new possible underwater signal in the remote Indian Ocean consistent with a plane's black box, fuelling hopes of a breakthrough in the arduous month-long hunt.
The hunt for the missing Malaysian jet was on Thursday narrowed down drastically to a targeted patch in the Indian Ocean after fresh underwater signals possibly from the plane's black box were picked up this week.
Search teams hunting for the missing Malaysia Airlines plane have heard the signals again that could be consistent with those emitted by aircraft "black box", even as investigators were racing against time to locate the flight data recorders before its beacons fall silent.
The arduous hunt for the Malaysia Airlines Flight MH370 on Friday entered a new phase with two hi-tech ships scouring a large area in the Indian Ocean for the black box of the jet before pings from it fall silent.
A mini-submarine deployed to find the crashed Malaysian jet has touched record depths in the Indian Ocean beyond its operating limits and embarked on a fifth mission on Friday, with still no sign of the plane's wreckage.
Multinational search teams were racing against time to locate the black box of the crashed airliner, as Malaysia revised the account of the critical final communication received from the jet.
Malaysian Prime Minister Najib Razak has admitted that Malaysia 'did not get everything right' in the first few days of Flight MH370's disappearance and called for implementing real-time tracking of airliners, as the search for the crashed jet was hampered by technical troubles on Wednesday.
Australian Prime Minister Tony Abbott on Monday said it was now "highly unlikely" that any debris of the missing Malaysia Airlines plane will be found on the ocean surface, as he announced a more intensive underwater search
A number of "encouraging leads" of electronic pulse detected in the southern Indian Ocean on Sunday prompted multinational search teams to rush their hi-tech ships to the area to determine if these signals came from the black box of the crashed Malaysian plane.