As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEPARTED IN HEAVY PRECIPITATION, EN ROUTE RECEIVED COMPARATOR ANNUNCIATION FOR AIRSPEED MULTIPLE TIMES 4 - 6 KNOT DIFFERENCE AT 360. THEN DESCENDING THROUGH 340 AIRSPEED DIFFERENCE OF APPROX 50 KTS BETWEEN CAPTAIN & FIRST OFFICER AIRSPEED, ALTITUDE DIFFERENCE OF OVER 200'. DRAINED WATER FROM PITOT SYSTEMS 1 - 2 DRAINS. PERFORMED PITOT STATIC LEAK CHECK & FUNCTIONAL CHECK IAW AMM 34-13-00 WITH NO FAULTS.