As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COFFEE FROM AFT COFFEE MAKERS HAS STRONG DETERGENT TASTE, PLACED BOTH AFT COFFEE MAKERS ON DEFERRAL. COMPLIED WITH MX SECTION PULLED AND COLLARD C/B. PERFORMED OPS CHECK IAW AMM 25-32-01 MULTIPLE TIMES. NO DETERGENT ODOR OR TASTE REMAINS. NEF REVERSED, OK TO CONTINUE SERVICE.