As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INVESTIGATED FLIGHT CREW REPORT OF INTERMITTENT BLURRING OF PILOT'S EHSI DISPLAY. VERIFIED FAULT STAYED WITH INDIVIDUAL ED-800 DISPLAY UNIT. REPLACED ED-800 DISPLAY UNIT WITH A REPAIRED UNIT, NO FAULTS NOTED. TRANSIENT ACFT, COMPONENT HISTORY UNKNOWN.