Ethiopian investigators have offered the first official glimpse into what is known about the second of two fatal Boeing 737 Max 8 crashes over five months and how they are related.

The Ethiopian Accident Investigation Bureau released details from a preliminary report at a press conference Thursday, saying the findings suggest that the pilots of the doomed Ethiopian Airlines flight were not at fault. The final report may take a year to be completed, The New York Times reported .

After weeks of speculation and reported press leaks related to both 737 Max crashes the first involving a Lion Air flight in October a picture is starting to come together: