As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEATED PLASTIC ODOR CAME FROM UNDER SEAT 18AC. AFTER SCREENS 19AC AND 20AC WENT BLANK. 19A AND 20AC CAME BACK BUT NOT 19C. ODOR DISAPPEARED. CONNECTOR UNDER 18A RECONNECTED. 19C SVDU REPLACED. IP SEQUENCE AND SOFTWARE DOWNLOADED. AUDIO/VIDEO WORKS. NO BURNING ODOR.