Tanker 910’s engine problem

Tanker 910's engine problem, Beaver Creek Fire
Tanker 910’s engine problem, Beaver Creek Fire

It’s just a guess, but what you see in this photo of Tanker 910 over the Beaver Fire in Idaho may be evidence of what led to the replacement of the number two engine last week. The image is a screen grab from the video below which has many excellent still images from the Beaver Creek Fire.