"To lose one landing gear may be regarded as a misfortune; to lose three looks like carelessness." - apologies to Oscar Wilde.
At first blush, this smacks of a classic "flew it into the ground" hard landing due to misperception of HAT. Sometimes due to a narrower-than-standard runway at a smaller airport - but PQI 01 is pretty standard 150-feet/46m wide. I wonder if a dusting of snow on the hard stuff still messed with pilot perceptions, though. Or indeed, as a pax suggests, they missed the runway altogether as "white-on-white."
Guess the investigators will be able to read the tracks and conditions and figure it out.