As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REFERENCE LOG PAGES 369125 AND 369126. DURING FLIGHT THE FA REPORTED A STRONG ODOR AND HEAT. MAINT RAN APU AND ENGINE (1) AND (2) AT IDLE WITH BOTH PACKS ON. MAINT VISUALLY INSPECTED CARGO PITS, FWD AVIONICS COMPARTMENTS AND FUSELAGE, AFT OF PRESSURE BULKHEAD NO UNUSUAL ODERS NOTED. MAINT INSPECTED CABIN AND FOUND AND UNUSUAL ODOR COMING FROM AFT COFFEE MAKERS WHILE BREWING. PLACED NR (2) AFT COFFEE MAKER ON NEF 25-99-30AD. AIRCRAFT WAS RETURNED TO SERVICE.