It was in the original proposal for the heritage unit program which was leaked by a railfan out of Florida named Henry Goodbread on Instagram. At the time no one believed it, but considering we are up to 20 something units now, I think the credibility has been established.
Yes, there are Pan Am units running around, your point? UP still has CNW and SP units running around and yet they have heritage units. CN has WC, BLE, DMIR, among other units running around and they have heritage units. But yes, there are Pan Am units running around which don't fit the style of heritage unit CSX is going for.
MEC407 wrote:To play devil's advocate, one possible reason they might consider doing a PAR heritage unit is because they're exclusively using ES44ACs for their heritage unit program. They want the heritage units to be able to roam freely on all the CSX mainlines. The ex-PAR units probably aren't reliable enough for CSX to let them go very far from home.
The Pan Am units are staying in Maine since they either lack PTC, or aren't equipped with the system that the rest of the known world outside MBTA uses.