As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT FL 591 - CREW REPORTED SMOKE IN THE AFT GALLEY THAT WAS ELECTRICAL IN NATURE. FLIGHT DIVERTED TO PIT. ON DESCENT, CREW NOTED THAT THE SMOKE ABATED. MAINTENANCE REPLACED BOTH AFT GALLEY COFFEE MAKERS, WHICH WERE REPORTED TO BE CAKED WITH A BUILD-UP OF DRIED COFFEE.