As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT FLT 968 SJU - CLT. THE FIRST OFFICER'S LOWER CRT (MAP SCREEN) HAS BRIGHT LIGHT SPIKES WITH INTERMITTENT INTERNAL ARCING. THE CREW SELECTED EFI, BUT THE PROBLEM PERSISTED. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE RIGHT EHSI.