So the 777 has most of the GPS approaches around the world in the data base, with the same RNP alert as the what was mentioned in the above posts on the 737, but due to no RAIM lost alert function the only FIR that l can't use it in is Australias.
Fair Dinkum
!!??
l think the ADIRU is more switched on than CASA with or without RAIM!
halas