I was transferring some cold chicken to a dish and a few drops of the gravy splashed into a parev pan with yad soledes oil in it. The pan was kli rishon but had already been taken off the fire before this happened. What is the status of the pan?
If the oil did not contain sixty times the volume of the drops of gravy, the pan would become meaty due to the hot oil cooking the gravy, and its taste being absorbed by the pan. As you note, although the pan was taken off the fire, it remains a keli rishon.
Sources: This is based on the principle of tasa’a gavar (the bottom food, in this case the hot oil, is dominant). See Shulchan Aruch 91:4, 105:6, and Chochmas Adam 60:10.