Originally Posted by
mikewil
Depends on what kind of failures you are referring to.
For the 182 (and most singles) the loss of oil pressure would cause it to go to fine pitch, and a failure of the speeder springs in the CSU would cause it to go to coarse pitch.
Multi engine pistons generally work in the reverse (I'm not exactly sure why, but assume it has something to do with the feathering function).
As an instructor said to me "depends wether it's intercourse or into fine".