FCV was never ordered by Air France but is the original first ordered A/C from Cargolux as can be easily seen by her Boeing customer code =R7, the only aircraft not ordered and built to CV specs in the fleet is ICV which is indeed the first -400F and as a 428F was ordered by Air France and spend some time in the desert before joining CV as the 3rd A/C.
CV didn't put FCV in the desert but it was delivered to UPS flown to Roswell as N581UP.