As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT ATTENDANT SMELLED ELECT SMOKE FROM SEAT AT 1L DOOR. PERSISTED 3 TO 4 MIN, THEN DISSIPATED. A/C RETURNED TO JFK. FLT ATTENDANT REPORTED SMELL ONLY, NO SMOKE. SUSPECT RESIDUAL FUMES FROM DEACT OVEN, IN FWD GALLEY. REMOVED CONNECTORS FROM OVEN AND DEACT BUN WARMER. LOAD A/C ELECTRICALLY AND PERFORMED POWER RUN, NO FUMES OR SMELLS. AC RETURNED TO SERVICE.