Originally Posted by
ContinentalFan
Over and above the number of FA's per passenger seats, there are also work rule requirements which may add one or more FA's ensuring that none of them exceeds the eight hour (?) limit--hence those rest seats.
FA's don't have an 8 hour limit per FAR's. You can dispatch a 767 on a trans-atlantic flight over 8 hours with the minimum required crew of FA's.