Learning Experiences

April 2006 Issue

Learning Experiences: 04/06

Lather. Rinse. Repeat.
It was an average Minnesota day in April, if there is such a thing. The temperature was in the fifties on the ground, with broken to overcast skies at 8000 to 10,000 feet. I was taking my King Air E90 down to Wichita at FL 210. In IMC at around 10,000 feet I first noticed the pilotís airspeed drop off to about 40 knots lower than what I would normally expect to see in a 1000 lb.-under gross climb. Both pilot and copilot pitot heat systems were activated. The copilot airspeed was about 160 KIASóabout rightóbut the pilotís was down around 120 KIAS. I had a trace of rime ice and assumed the pilot pitot tube had burned out.

Then the pilot-side VSI and altimet...

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