Honeywell received FAA TSO approval last month to start deliveries of an FMS software upgrade that provides advanced GPS-enabled approaches and access to Future Air Navigation System (Fans) routes in congested airspace and on oceanic airways. With the approval, Honeywell’s FMS 6.1 software upgrade can be installed in approximately 600 business aircraft equipped with the Honeywell FMZ-2000 flight-management system. The upgrade provides capability for Waas-LPV, Fans, RNP and SAAAR operations. Duncan Aviation of Lincoln, Neb., last month gained the first STC related to the Honeywell approval, upgrading the NZ-2000 FMS and adding GPS Waas/LPV receivers in a customer Challenger 601-3A.