As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL340 GOT IAS DISPLAYED ON PFD'S AS WELL AS WSHEAR DET FAIL SEL ELEV FEEL MAN AND SEL FLAP LIMIT OVED DISPLAY. COMPLIED WITH AIRSPEED UNRELIABLE CHECKLIST IN QRH. IT APPEARED CAPTAINS AIRSPEED WAS IN ERROR. TRIED TO SELECT AUX CADC. THIS DID NO FIX IT. ENDED UP WITH CAPT ON CADC 2. REMOVED AND REPLACED 1 ADIRU. OPS CHECK NORMAL. PURGED CAPT AND AUX PITOT STATIC LINES. PREFORMED AUTO LAND LLM RTS ON BOTH FCC 1&2 TEST PASSED. REMOVED AND REPLACED AUX ADIRU & TEST NORMAL.