What was found
F/A'S REPORT INTERMITTENT ELECTRICAL ODOR AT FRONT OF ECON CABIN, WITH RECIRCS OFF, SMELL MOVED TO BACK OF ECONOMY. AFTER A SHORT PERIOD OF TIME ALL NORMAL, SMELL DISSIPATED. INFORMED BY FLT CREW THAT ODOR RESEMBLED BURNED FOOD AND PLASTIC WRAPPING RATHER THEN AN ELEC ODOR. CREW SWITCHED OFF RECIRC FANS FOR 20 MINS, SMELL DISSIPATED ONLY AFTER RECIRC FANS WERE REACTIVATED. RECIRC FANS VISUAL & OPS CHECK NORMAL, NO FAULTS IN MAT OR STS MSG. FOUND BURNED RESIDUE IN B/C GALLEY OVEN. RECIRC FANS OK FOR SERVICE.