On March 7, at 1:30 am Malaysian Airlines flight MH370 lost all communications and vanished with 239 people on board.<br /><br />Now, five days later, search crews are racing to find the plane's black boxes in order to solve the mystery of its disappearance, the South China Morning Post reported.<br /><br />Black boxes are able to record a huge amount of data and therefore can help, in case of a crash, to understand the causes of the accident.