I was out in Gillette, Wyoming to the west of the downtown yards in the morning of June 23. I saw ES44DCs 7656 and 7524 pulling two flatcars, each with a unfinished Boeing aircraft fuesalage on them. The rest of the train was a mixed freight. Where were these aircraft coming from? I would guess they were going to Seattle but why over the BN north exit of the Powder River Basin and not GN's high line through Montana? Also, is this a rare sighting on the BNSF or is this kind of load common?