As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG BURNING RUBBER ODOR INFLIGHT, LOCALIZED TO GALLEY & FIRST COUPLE ROWS OF CABIN. NO SMOKE NOTED & NO ELECTRICAL ISSUES NOTED. GALLEY HEAT & POTABLE WATER SYS ON. PULLED BREAKERS FOR POTABLE WATER & GALLEY HEAT & ODOR DISPERSED. FOUND GALLEY LINE HEATER GROUNDED OUT & BURNING INSULATION NO DAMAGE NOTED TO ACFT SKIN OR STRUCTURE SAFTIED LINE HEATER & BREAKER IAW 278322 3 FOR MEL.