She could be going somewhere in a light plane and the propeller could suddenly fly off.
That's actually happened, to a Republican elected official. I can't remember his name.
James Inhofe.
Inhofe, his aide safe after plane crash-lands (Is someone trying to kill Jim Inhofe?)
The senator was forced to make an emergency landing in 1999 at the Claremore Municipal Airport after the propeller fell off the Grumman American AA-5B he was flying.The NTSB investigated that incident, and its report blamed an error on the prop installation.