As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRICAL FUMES IN COCKPIT AND CABIN FROM UNKNOWN ORIGIN. COULD NOT DUPLICATE ISSUE. PERFORMED GVI BEHIND C/B PANEL STARTER GENERATOR WIRES AND AC BELT AND AFT TRAY. NO DEFECTS NOTED. PERFORMED SYSTEM ON WITH GROUND PROWER CART NO DEFECTS NOTED. PERFORMED GROUND RUN NO DEFECTS NOTED. COULD NOT DUPLICATE.