Maybe they extended the flaps, got into a tailplane-stall, realized it, retracted the flaps and did not have enough altitude to recover?
I also found the wind conditions quite interesting. At 5000ft from 250-260 degrees at 45-50kts, while EDNY's METAR corresponding to the time of approach reported winds 200/8. Quite a bit of windshear/turbulence. Another C510 of the same operator had landed 10 minutes before the accident happened and reported that it was bumpy with a rapid decrease of wind, but also that it was well manageable and that they were VMC at 3500ft MSL. Icing was light to moderate, for them.
Last edited by EatMyShorts!; 13th Mar 2018 at 08:52.