Narrative:

At FL320; in the weather; moderate turbulence; autopilot 1 on. Captain lost speed tape; captains altimeter became 300' higher than the first officer's altimeter and the standby altimeter. The auto-throttles went to full power; manual throttles selected after that. Small heading changes resulted in large rudder inputs by the autopilot and large roll inputs; 15-20 degrees angle of bank and nearly full rudder. Even though we were on selected altitude and airspeed we received near continuous altitude alerts and over speed alerts and warning bell. Selected 15 degree max bank angle; rudder inputs did lessen. After exiting the weather captain and first officer's selected airspeed showed 10 knots difference. Tac mode; selected a set speed then returned to econ and everything returned to normal. This is being submitted for the 300' possible altitude deviation.

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Original NASA ASRS Text

Title: A300 First Officer reports system and instrument malfunctions consistent with loss of Captain's pitot static system in IMC.

Narrative: At FL320; in the weather; moderate turbulence; Autopilot 1 on. Captain lost speed tape; Captains altimeter became 300' higher than the First Officer's altimeter and the standby altimeter. The auto-throttles went to full power; manual throttles selected after that. Small heading changes resulted in large rudder inputs by the autopilot and large roll inputs; 15-20 degrees angle of bank and nearly full rudder. Even though we were on selected altitude and airspeed we received near continuous altitude alerts and over speed alerts and warning bell. Selected 15 degree max bank angle; rudder inputs did lessen. After exiting the weather Captain and First Officer's selected airspeed showed 10 knots difference. TAC mode; selected a set speed then returned to ECON and everything returned to normal. This is being submitted for the 300' possible altitude deviation.

Data retrieved from NASA's ASRS site as of April 2012 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.