A year after the disappearance of Malaysian Airlines flight MH370, the plane's whereabout still remains a mystery while Australia and Malaysia remain hopeful.

According to David Learmount, operations and safety editor of Flightglobal aviation news publication, the eccentric routing of the plane with the aircraft doing almost a U-turn might prove that the plane might have been deliberately flown off course, the Irish Examiner reported.

"We still have no explanation of what really happened," said Learmount referring to the 584-page report from the Malaysian government about the tragic event happened on March 8, 2014.

Furthermore, the Malaysia Kini wrote in its publication that based on the 584-page report into the disappearance of the Boeing 777-200ER revealed that the beacon battery for the flight data recorder had expired in December 2012 and was not replaced.

The site added that U.S. law firm Kreindler and Kreindler LP, who represents around 20 families, said that the expired battery could be that key in legal action against Malaysian Airlines.

Moreover, as MH370 plane has not yet been found, the government of Australia and Malaysia is set to develop a technology that can track or detect an aircraft to avoid an accident, cite The Business Times.

The intensive research for the MH370 is jointly funded by Australia and Malaysia with a budget of A$120 Million. The Prime Minister of Malaysia Najib Razak said: "The lack of answers and definitive proof such as aircraft wreckage has made this more difficult to bear."

Together with our international partners, we have followed the little evidence that exists, Malaysia remains committed to the search, and hopeful that MH370 will be found," Razak added.

Also, Prime Minister Tony Abbott of Australia remains hopeful that the mystery will be solved and added that they will not end searching the areas until it comes up empty.

The Malaysian Airlines flight MH370 has disappeared on March 8, 2014 while en route from Kyla Lumpur to Beijing with 239 people on board.