As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT 3323 CAPT AIRSPEED INDICATOR BARBERPOLE SPINNING CONTINUOUSLY INFLIGHT. INDICATION FOR AIRSPEED SEEMS NORMAL. AIR RETURN TO MEM. MAINTENANCE REMOVED AND REPLACED NR 1 AIRSPEED INDICATOR REF AMM 34-10-00. P/N ON/OFF 622-5353-011. S/N OFF 381. S/N ON 133. OPS TEST OK.