As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMELL OF ELECTRICAL CIRCUIT IN CABIN NO SMELLS IN COCKPIT. SMELL WAS MID CABIN SOURCE UNKNOWN NO SMOKE JUST SMELL. BOTH ENGINE BLEEDS ON BOTH PACKS AUTO. APU OFF. FOUND LT RECIRC FAN CIRCUIT BREAKER OPEN; REMOVED AND REPLACED LT RECIRC FAN IAW AMM 21-25-02; OPS TEST GOOD; NO CABIN ODOR NOTED. PERFORMED CONDITIONAL INSPECTION FOR FUMES IN CABIN IAW AMM 05-51-56; NO DEFECTS NOTED.