As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB- RETURNED MSP DUE TO AIRSPEED DISAGREE. CAPTAIN'S SIDE INACCURATE. FAULT CODES 31-65050 (ALT DISAGREE), 31-65010 (PITCH DISAGREE) AND 31-65020 (ROLL DISAGREE) RECORDED. CAPTAIN'S PITOT HEAT TESTS GOOD. REPLACED LEFT ADIRU AND CAPTAIN'S SIDE PITOT ADM. PITOT STATIC AND AIRSPEED OPS CHECK GOOD. (LP 7991534)