Narrative:

Level at FL370 in cloud, no ice, -40 degrees C. Jet upset -- ice, rain and pitch up. Power back, nose down. Still climbing at 5000+ FPM. Reported to center.

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Original NASA ASRS Text

Title: FLC OF JET COMMANDER EXPERIENCES UPSET IN IMC CONDITIONS AT FL370.

Narrative: LEVEL AT FL370 IN CLOUD, NO ICE, -40 DEGS C. JET UPSET -- ICE, RAIN AND PITCH UP. PWR BACK, NOSE DOWN. STILL CLBING AT 5000+ FPM. RPTED TO CTR.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.