help needed with 904

So I'm assuming since everything was plugged off someone hopefully poured out most of the oil? Or even if it had oil in it if I flipped it over I would assume that it would go into the transmission and not still have the pan full? Like as in I'm not going to lift this pain or undo it and a bunch of oils going to go around all over the place? Or should I try a cracking the pan open with it Facing down first?