Originally Posted by
pattern_is_full
Just to put another cat among the pigeons,
Aviation Herald is now quoting "a military pilot" who says he saw the same aircraft, 10 minutes prior to the accident, make a similar left turn that "suddenly" developed into a severe roll and dive, but recovered with high power.
Make of that what you will:
Crash: Ju-Air JU52 at Piz Segnas on Aug 4th 2018, impacted terrain
Yes I read that, sounds like a propeller problem, overspeed or loss of prop control.
The "high power" sound may have been the prop overspeeding and causing severe drag on the left engine.
Pure speculation on my part of course.