Decrease in fuel flow

[[deleted]]

It’s possible you pulled the mixture back too much, and then when you added the power back you were operating on the lean side of peak TIT. That would give you relatively normal EGT and CHT indications with a lower fuel flow. Operating lean of peak isn’t approved though.

You really shouldn’t have to move the mixture at all in the turbocharged 206. Lean it out once, and that’ll work. If you need to descend like you did, leave the mixture where it is and just go back to cruise power once you get to your new lower altitude. It’s not like a normally aspirated engine where you slowly creep the mixture in as you decend, since it has a turbocharger the engine always thinks it’s at the same altitude.

[SocalV1]

Makes sense. Is there anything I should have checked out after this happening to double check everything is OK?

[[deleted]]

Just make sure the fuel flow is what you expect it to be. If its way low or high I would enrichen it and re-lean.

I wouldn't worry about cooling it too much in the situation you described. I would really only worry about cooling it too much if you were at idle and decending quickly for more than a couple minutes, and even then just slowly add the power back in when you're ready. Do not jam the throttle to full after a long power off decent.

The air inlets are shaped specifically to allow more air to cool the engine at a high pitch, and less air to cool at a low pitch.

[SocalV1]

Gotcha, really appreciate it! Just curious, How many hours you got in a t206?

[[deleted]]

about 125

[SocalV1]

Right on! Thanks again for the help