As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURN TO GATE FOR STRONG ELECTRICAL BURNING ODOR IN AFT GALLEY/AFT OTBD HOT. REMOVED AND DEACTIVATED THE AFT COFFEEMAKERS IAW EO E175-2500-037, REV 1R ACCOMPLISHMENT INSTRUCTIONS. REF W/O 358284. COFFEMAKER REMOVED AND SENT TO ACFT SERVICES TO CONFIRM FINDINGS.