posted on Nov, 24 2018 @ 10:27 AM
According to the AIB report one of the four onboard "navigators" failed, and the aircraft didn't detect the failure. The aircraft eventually rolled
over almost inverted, and exceeded its maximum airspeed and broke up before impact.
The aircraft departed Edwards on a ferry flight to Beale. After takeoff two of the four onboard navigators were disabled, per SOP under normal