What was found
ORD - EMERGENCY LIGHTS IN AFT CABIN INOPERATIVE. REPLACED BATTERY PACKS AT B527 FOR EMERGENCY LIGHTS IN AFT CABIN. SYSTEM GROUND CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - EMERGENCY LIGHTS IN AFT CABIN INOPERATIVE. REPLACED BATTERY PACKS AT B527 FOR EMERGENCY LIGHTS IN AFT CABIN. SYSTEM GROUND CHECKED NORMAL OPERATION.