@EstorilM
I originally thought the flames were from a compressor stall on the #2, which are common, especially if you are jamming the power at the last second. (Assuming that's what they did)
However, I think the flames are from the #3 (starboard) engine.
My viewer is not good enough to get a great look.
They appear to occur right where that stone hut was located.
Maybe he hit that?