As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3308 NUMEROUS VENT EXTRACT OVBD CAUTION MESSAGES WITH ASSOCIATED ELECTRICAL SMELL DURING DESCENT. CORRECTIVE ACTION: POST FLIGHT REPORTS EXTRACT FAN(7HQ)/AEVC(2HQ). FOUND BAD FAN (7HQ). R&R EXTRACT FAN PER A330 AMM 21-26. OPS CHECKS GOOD. NO ODOR NOTED. AVEC SYSTEM TEST PASS. (7338508)