As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT ALTITUDE 310, FLIGHT ATTENDANTS REPORTED A STRONG ELECTRICAL ODOR FROM FORWARD PART OF FIRST CLASS. TURNED OFF SIDE PANEL LIGHTS AND ODOR DISSAPATED AFTER 5-10 MINS. COMPLIED WITH JIC 2120-2367 THROUGH STEP 6. COMPLETED DUCT BURNOUT . NO ODOR PRESENT. APU AND ENGINES CLEAN. RAN ENGINES TO TAKE OFF POWER AND NO ODOR PRESENT.