As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT REPORTED AFT COFFEEMAKERS PRODUCED "BURNING" SMELL DURING BREW PROCESS. C/B'S PULLED - NO SMOKE NOTED FOUND C/M 419 HAS BURNT PIN ON C/P. PULLED AND COLLARED C/B & PLACED ON MEL. RAN OTHER C/M & OPS NORMAL. CONFIRMED PINS B, D AND E SHOW SIGNS OF BURNING. EXT NUMBER 083915. PLACARD REMAINS.