As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT GALLEY OVEN 707 HAS DEBRIS ON IT SO IT BURNS/SMOKES WHEN O N OVEN 707 REAR FAN FOUND TO BE DIRTY SUSPECT CAUSING SMELL. OVEN DEFERRED IAW MEL 2520AV. R & R STEAM OVEN 707 IAW AMM 25-32-02/401, OPS CHKD GOOD. REVERSED NEF OK TO CONTINUE.