Just caught that Kalitta "Connie" 2844 experienced an engine fire in engine #4 after landing at KORD this morning (approx. 10:35 local). Had just arrived in from PANC:
http://flightaware.com/live/flight/CKS2844Tower notified aircraft of visible fire in engine and rolled out the welcome wagons...
After visit from emergency vehicles returned to taxi, so apparently nothing too spectacular.