As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA NOTICED ELECTRICAL SMELL IN AFT. RETURNED TO GATE FOR MX CHECK - COMPLIED WITH REPORTED ELECTRICAL SMELL IAW A220 FAULT PROCEDURE BD500-A-J21-22-00-00AAA-423A-A. CHECKED EICAS FOR MESSAGES. CHECKED FOR OPEN CIRCUIT BREAKERS, CHECK ELECTRONICS BAY, AND PERFORMED WALK AROUND. NO EVIDENCE OF ODOR FOUND. AIRCRAFT OKAY FOR CONTINUED SERVICE.