As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN THE PASSENGER IN SEAT 3C RECLINED HIS SEAT SPARKS WERE REPORTED FROM UNDER THE SEAT. BURNING INSULATION SMELL REPORTED. BOTH IN-SEAT VIDEO UNITS IN THIS SEAT BECAME INOPERATIVE AND THE VIDEO UNIT AT 3G BECAME INOPERATIVE. NO CIRCUIT BREAKERS IN THE COCKPIT OPENED. NO DAMAGE FOUND BY CREW. REPLACED THE CENTER CONSOLE UNIT AT SEAT 3D. CHECK-C 5-15-00.