As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NGU/NAP AIR TURNBACK DUE TO AIRSPEED INDICATOR FAILED AFTER TAKEOFF, INDICATING 90 KTS, F/O'S INDICATED SAME AS STANDBY A/S LATER ON. SELECT FLAP LIMIT AND SELECT ELEV FEEL MANUAL LIGHTS CAME ON. FOLLOWED PROCEDURES & RETURNED TO KNGU. REMOVED AND REPLACED AIR DATA COMPUTER. PERFORMED PITOT STATIC TEST FOUND NORMAL.