As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FOUND EMERGENCY LIGHTS AT OVERHEAD LEFT AND RIGHT FORWARD AUXILIARY OVERWING EXIT AT SEAT ROW 20DEF INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY LIGHTS AT OVERHEAD LEFT AND RIGHT FORWARD AUXILIARY OVERWING EXIT AT SEAT ROW 20DEF. SYSTEM GROUND CHECKED NORMAL OPERATION.