As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SWAPPING THE CHANNEL A AND B FADECS FOR TROUBLESHOOTING, THE CREW REPORED FADEC F1B CLASS 3 WHITE MESSAGES THAT WOULD NOT CLEAR. THE NR 1 ENGINE F1A FADEC WAS REPLACED WITH A REPAIRED UNIT. LEAK AND OPS CHECKS WERE SATISFACTORY. REF: HNYWL 783 LMM 72-06-03 AND THE AMM.