Originally Posted by brunos

Just a precision. Inventory in F and P are different (usually lower in F). F is used for awards and for discounted P (I believe that very very fex pax pay a full P).
While the F inventory is usually good on a 77W (8 seats) it is often bad on a 772 (only 4 seats). When only one seat is already booked, it is not unusual to see P7F5 on a 77W and P3F0 on a 772.
EF support table of classes on AF is indeed outdated and does not reflect the changes introduced in April and October 2009. But their live availability engine for AF flights is fully up-to-date with correct inventory for all current classes.