Mystery surrounding flight MH370 – wreckage found 1.5 years ago may provide crucial clue. “The evidence is in the Indian Ocean,” former chief investigator for the Australian Aviation Safety Authority, Peter Foley, says in the ZDF documentary.
However, he warns that the data on the flight recorders doesn't last forever. In 2017, one of the largest search operations in aviation history was halted after two years. It wasn't until September 20 that researchers reported a completely new approach to finding the wreck.