🇺🇸 N912FD - Boeing 757 28ASF - FedEx Express FDX839/FX839, Great Falls (GTF) to Louisville Muhammad Ali (SDF) - 4.8 mi away @ 40975 ft, heading ESE at 546 mph. Spotted for first time! [08:23:02 AM CDT] #AC9E9A #N912FD #B752 #FEDEX #FDX839 #FX839 #ADSB #ADSBbot