As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OPEN - FA REPORT POPPING SOUND FROM AFT GALLEY OVEN NR4 BEFORE C/B POPPED. TEAR DOWN IN PROGRESS. PRELIMMARY FINDINGS. POWER SWITCHBOARD FE1102-5 IS BURNED ON THE UNDERSIDE OF THE BOARD IN THE L-1, L-2 AREAS. HIDDEN DAMAGE. BURNING AND BLISTERING OF THE INSULATOR ADJACENT TO THE UNDERSIDE OF THE POWER SWITCHBOARD.