As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA - EMERGENCY EGRESS LIGHTS AT ROWS 21 TO AFT OF AIRCRAFT INOPERATIVE. REPLACED CHARGER AND BATTERY PACK AT MID POSITION ABOVE ROW 20DEF FOR EMERGENCY EGRESS LIGHTS AT ROWS 21 TO AFT OF AIRCRAFT. SYSTEM GROUND CHECKED NORMAL OPERATION.