Piper Malibu

As far as I know this happened on January 24, 2008.

So at about 10:00 a.m. this morning, tower rolls our emergency equipment for a Piper Malibu on an eight mile final with "low oil pressure and a possible oil leak". On short final, I hear the pilot advise the tower that he'll make the runway, but that he has virtually no forward visibility due to oil on the windscreen.

All of us looking out of our office windows see the aircraft roll out long on the runway, and notice that the entire prop and spinner are missing, since it all sheared off at the crankshaft, IN FLIGHT, apparently at least eight miles from the airport.