As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, BOTH CAPTAIN'S AND FIRST OFFICER'S AIRSPEED INDICATIONS WERE INACCURATE. AIRCRAFT RETURNED TO TPE AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 AIR DATA COMPUTER, CAPTAIN'S AIRSPEED INDICATOR AND RECONNECTED THE FIRST OFFICER'S AIRSPEED INDICATOR'S STATIC PORT, OPERATIONAL CHECK GOOD.