[onewhippedpuppy]

Really strange. The PA-46 is a high performance single engined plane, named the Meridian (turboprop and pressurized), Mirage (turbo piston and pressurized), and Matrix (turbo piston). They are a cabin class airplane, which means that the airplane has a single airstair style door that enters into the cabin, like most business jets. If pressurized then the door is likely impossible to open in flight, as it would cause a rapid loss of cabin pressure. The unpressurized version might be possible but difficult to open, but it's not the sort of door that just pops open like in a smaller piston plane.