Originally Posted by
Mitchaa
So it was VRS all along. Interesting reading
That is what the report says, however....
VRS requires very low airspeed whereas they seemed to have 20-30kts, and VRS results in a rate of descent of maybe 6000'/min not responding to collective, whereas they had 1800.
Perhaps they were on the cusp of developing VRS but I think it was mostly low airspeed and high rate of descent with insufficient power to arrest it in time. Although it doesn't really matter either way.
Anyway "it" wasn't caused by any of the above, "it" was caused by prolonged inattention to the airspeed having previously intentionally destabilised the approach by substantially reducing power to slow down.