As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN AIRSPEED RED DURING DESCENT, UNRELIABLE AIRSPEED INDICATION DROPPED MULTIPLE TIMES. RETURNED TO NORMAL, BUT X CHECK CAPT-STBY- FO 250-250-243 AT FL 240. -FOUND DEBRIS INSIDE PITOT PROBE #2 (FO SIDE) REF LP 3374528-1 AND 3374528-2 FOR CORRECTIVE ACTION