As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ODOR OF ELECTRICAL BURNING DURING DESCENT. DETECTED POSSIBLE VIBRATION FROM AREA OF AVIONIC EXTRACT SIDE. STATUS SHOWS CLASS II SMOKE, EXTRACT FAN - NO AVNCS SYS FAULT ECAM CAUTION. R & R THE EXTRACT BLOWER FAN IAW AMM 21-26-02A,. OPS CHECKED GOOD.