@jmcleod @stux it doesn’t take just one. worst case for one screw would be something like a screw from a pitot sensor coming lose and somehow destroying an engine. even if that happens, the plane is certified for that flight so you will be able to land on the remaining engine(s) and the pilots will have slightly less reliable airspeed indications on one side.

that’s a bad day and a ruined trip, but everyone still gets to go home.