As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DLH - FLT 4168 - CREW REPORTED TWO AFT EMERGENCY LIGHTS TO BE INOPERATIVE. AIRCRAFT WAS FERRIED TO ORD FOR REPAIR. MAINTENANCE REMOVED AND REPLACED A POWER SUPPLY BATTERY PACK IAW EMB MM. OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)