As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE AT FL340, .80M (279 IAS) ABOUT 40 MINUTES INTO THE FLIGHT, RECEIVED FO IAS DISCREPANCY ECAM. HIS STANDBY AIRSPEED INDICATOR REMAINED AT 279-280 BUT HIS PFD SPEED TAPE WENT TO 220 KTS AND VERY SLOWLY CREEPED BACK UP TO 279-280. TOOK ABOUT TWO MINUTES TO GO FROM 220 BACK TO 280. CLEARED ON ITS OWN. INSPECTED F/O PITOT PROBE AND FOUND DEBRIS/BLOCKAGE INSIDE PROBE. REMOVED AND REPLACED F/O PITOT PROBE . OPS/LEAK CHECKS GOOD.