As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED, PILOT REPORTS DURING DEPARTURE HAD SEVERAL IAS DISAGREE MESSAGES FAULT. F/OS AIRSPEED AGREED CLOSER TO STBY AIRSPEED. STABILIZED BY CRUISE WITH NO FURTHER OCCURRENCE. MAINTENANCE ACCOMPLISHED FIM 31-62-00-810-876, ALL LEAK AND COMPARISON CHECKS ON ALL SYSTEMS NORMAL AT HIGH LEVEL, NO DISCREPANCIES NOTED INSPECTED PROBES NO BLOCKAGE NOTED. REPLACED NR 1 PITOT ADM, LEAK AND OPS CHECK NORMAL IAW AMM 34-21-04, ALL REQUIRED TESTS OK.