As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ACFT EXPERIENCED WHAT CREW BELIEVE WAS A SERIES OF 5-6 MINOR COMPRESSOR STALLS INFLIGHT AT FL390. ENGINE POWER WAS REDUCED TO 75 PERCENT. ENGINE NR 1 ECAM ASSOCIATED. RESOLUTION ECU REPLACED AT NR 1 ENGINE IAW AMM 73-21-60, PB 401 AND T25 SENSOR IAW AMM 73-21-20, PB 401. CAT III DCPD IAW AMM 22-97-00. ALL OPS NORMAL.