As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED FAN STATUS MESSAGE, UPPER REC FAN SHOWS FAILED IN MAT. PERFORMED TEST IN MAT AND RESET CB, NO HELP STILL HAVE REC FAN STATUS MESSAGE. FWD UPR RECIRC FAN POPS CB (P110 A21). CB COLLARED. REPLACED FWD UPPER RECIRC FAN, OPS CKD GOOD.