As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ERRONEOUS ALTITUDE INFORMATION AND AIRSPEED FROM FLIGHT OFFICER'S INDICATORS. AT 11,000 FEET, 600 FEET DIFFERENCE. AT 240 KTS, IT WAS 30 KTS FAST. COMPLETED LEAK CHECK AND STATIC CHECK ON PITOT STATIC SYSTEM IN ACCORDANCE WITH AMM 34-11-01. COULD NOT DUPLICATE MALFUNCTION.