About the Pan African accident, it was investigated, it seems like the sliding door came off in flight and hit the tailrotor. Your worst nightmare, a tailrotor failure at night over water. The Captain was a most qualified, and current pilot. He had many years flying this model A/C. He was a good friend as well, and this was his last flight in country, he was returning to the GOM. The A/C was fairly new, a couple of years old, the lastest model of the 412 series. I hope this helps.