As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LHR - FLT 0108 - EN ROUTE BOS/LHR WHILE HEATING MEALS, SMOKE WAS OBSERVED FROM NR 1 AND NR 2 FIRST CLASS OVENS. SHUT OVENS OFF AND SMOKE DISSIPATED. LANDED LHR WITHOUT INCIDENT. CLEANED OVENS, SYSTEM GROUND CHECKED NORMAL OPERATION. (X)