EGT Anomaly

[RVG8tor]

I was looking over some data dumps and noticed that recently my #3 EGT drops off more than it used to compared to the others. The screen shot is as I go to idle on landing, in a recent flight the #3 gets a sharp drop rather than a slopped curve indicating to me that this is not normal. I wonder what might be causing this or where to start an investigation. I have not seen anything unusual in flight.

I looked at flights a few month back and this seems to have started sometime in April or May as near as I can figure. I wondered if this could be a sign of a dirty injector or something.

The screen shot might not be readable; the yellow trace in the group of four is #3, the steady slopped yellow trace that goes to the bottom and flattens is altitude.



Thanks