SYSTEM DESCRIPTION
The Flight Management System (FMS) as installed in the Piaggio Avanti
P-180 is a single system. Either the DBU-4100 Data Base Unit or the
Collins Portable Access System (CPAS-3000) Data Loader is used to
load navigation and performance databases, as well as store and load
pilot-defined routes and pilot-defined waypoints from a disk. The FMC
is a single Line Replaceable Unit (LRU) that receives data from both
the left and right avionics systems. The FMC requires a single CDU
for operator control.