As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPS ADVANCED CAUTION MESSAGE AT CRUISE FL 360 CA PFD SPEED & STANDBY SPEED AGREED, BUT FO PFD SPEED READ SIGNIFICANTLY LESS MESSAGE CLEARED AROUND FL250. C/A-DRAINED WATER FROM PITOT SYS 1-2 DRAINS IAW AMM 34-13-00 AND PERFORMED PITOT-STATIC LEAK CHECK AND OPC. PERFORMED ADC OPC IAW AMM 34-15-00 WITH NO FAULTS.