As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, FLIGHT ATTENDANTS REPORTED A LOUD POP FROM THE AREA AROUND THE AFT SERVICE DOOR. THIS WAS FOLLOWED BY A SMELL LIKE BURNT RUBBER OR TIRES SMELL AS PRECAUTION WE SHUT DOWN GALLEY POWER. SMELL SLOWLY DISSIPATED. R&R AFT COFFEE MAKER PER MM.