What was found
RETURNED TO DEPARTURE AFTER TAKEOFF, DUE TO A SMOKING COFFEEMAKER IN L1 GALLEY. F/A SAW SMOKE, & NOTED AN ELECTRICAL ODOR, DISCHARGED TWO FIRE EXTINGUISHERS. SMOKE DISSIPATED. ALL GALLEY CIRCUIT BREAKERS TRIPPED. MAINTENANCE FOUND AN OVERHEATED SWITCH, S3-23, AT LUG AND ALSO AN OVERHEATED APU FEEDER WIRE AT THE CONNECTION BLOCK. TERMINAL STRIP, GROUND SERVICE RELAY, AND APU BREAKER WERE REPLACED ALONG WITH A SEVEN FOOT SECTION OF WIRE. NR 2 COFFEEMAKER REPLACED.