As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ENTERING THE ROUTE IN THE FMC, ROUTE WAS NOT PREVIOUSLY ENTERED AT THE GATE, NOTICED SMOKE RISING FROM THE DOOR WARNING PANEL. THE AMOUNT OF WAS SMOKE WAS APPROX EQUAL TO THE SMOKE FROM A SINGLE MATCH GRAIN WHEN BLOWN OUT. A BURNING ODOR WAS ALSO PRESENT.