As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING CLIMB BURNING FOOD SMELL IN FLIGHT DECK AND CABIN BUT OVENS WERE OFF. MAINTENANCE FOUND THE APU OIL COOLING FAN LEAKING OIL INTO THE APU INLET AND REPLACED IT PER AMM 49-41-11. A SATISFACTORY LEAK CHECK WAS ACCOMPLISHED.