As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - EMERGENCY TRACK LIGHTING FROM SEAT 20DEF FORWARD INOPERATIVE. REPLACED BATTERY PACK ABOVE SEAT 20DEF AND IN FIRST CLASS GALLEY AND SPLICED TWO CHAFED WIRES FOR EMERGENCY TRACK LIGHTING FROM SEAT 20DEF FORWARD. SYSTEM GROUND CHECKED NORMAL OPERATION.