Mike Proctor wrote:
Carburetor ice? From the picture, it looks as if there was a fair amount

of water vapor/fog in the air. IIRC, the temperature in that area was
ideal for carb ice formation.


Yep, according to this article:

http://www.theindychannel.com/news/1...3/detail.html#

Well, the article did cite "ice", but it wasn't carb ice, that's a fuel
injected motor. Perhaps ice crystals on a fuel screen, or maybe he iced
up the air filter, although the alternate air should have cured that.

Happy Flying!
Scott Skylane