As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF THE CREW RPEORTED SMOKE IN THE CABIN. THE ACFT RETURNED TO LIT WHERE IT LANDED WITHOUT INCIDENT. UPON INSPECTION THE SOURCE OF THE SMOKE WAS FOUND TO BE THE COFFEEMAKER WHICH WERE DEFERRED UNDER AN NEF AND THE ACFT WAS RETURNED TO SERVICE.