Indonesia's first public report on the deadly Lion Air crash will reveal how the pilots desperately tried to save the doomed aircraft.
Sources familiar with the report told Bloomberg News the pilots were fighting against the plane's automatic anti-stall system that forced the plane into a nosedive - all while the pilots attempted to diagnose multiple apparent failures.
One hundred and eighty-nine people were killed in the disaster.
The preliminary report will be released to the public on Wednesday (November 28).
It's not expected to give a definite answer as to why a brand new Boeing jet crashed.
Investigators met with grieving relatives ahead of its release, one family member told local media the information was disappointing - with much of it, already in the public domain.
A committee told parliament last week that a faulty indicator made the plane think it was pointing too far up, which would have caused it to stall.
So it automatically sent itself into a nosedive, to prevent that imagined stall.
The committee said the pilots successfully fought the plane for some time, before its eventual crash into the Java sea.