What was found
C-B M41 POPPED. FLT ATTENDANT REPORTS SMOKE SPARK THEN C-B POP. CREW REPORTED THAT CB SMOKED, SPARKED THEN POPPED-NOT THE COFFEMAKER. PER INBD FLT ATTN THERE WAS A POP WHEN CB M41 TRIPPED. SHE DID NOT SEE SPARK OR ODOR SMOKE. MECH TRIED TO RESET CB M41, GOT POP AND SPARK AT REAR OF COFFEEMAKER, CHECKED AREA VERIFIED COFFEEMAKER BAD. REPLACED COFFEEMAKER. BREWED COFFEE, CB NORMAL, OPS CHECK NORMAL.