As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VENTILATION BLOWER FAULT ON FINAL LOUD NOISE AND SULFER SMELL AT GATE THEN BLOWER FAN POPED THEN BLOWER FAULT ( BLOWER FAN (AVIONICS VENTILATION) VENT AVNCS SYS FAULT NOT DISPLAYED )-R/R VENT BLWER FAN IAW AMM 21-65-51. OPS CHECK GOOD. NO DEFECTS NOTED AT THIS TIME. THIS CLEARS DMI# 2747098-1 PLACARD REMOVED & MOC NOTIFIED