As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: CAPTAIN AND FIRST OFFICERS AIRSPEED INDICATORS UNRELIABLE/ERRATIC AT FL330. OCCURRED 2 TIMES FOR APPROXIMATELY 5 SECONDS IN DURATION "AIRSPEED LOW" AURAL. WARNING WITH SECOND OCCURRENCE. V NAV DISCONNECTED ALTIMETER FLUCTUATED BY APPROXIMATELY 300 FEET. REPLACED LEFT AIR DATA INERTIAL REFERENCE UNIT (AALA202207133770) PER AMM 34-21-01 ALSO TOTAL AIR TEMPERATURE PROBE PER AMM 34-21-06.