It seems to be a collision between the Batik Air 738 and a Trasn Nusa ATR42 parked on the apron as it taxied past.
Correction: Reports now saying a runway incursion by the ATR42. But if that's the case, then why would the vertical stabilizer of the ATR42 be sliced off? I suspect the ATR was backtracking and exiting the runway but wasn't completely off the runway before the B738 collected it.
Last edited by training wheels; 4th Apr 2016 at 15:30.