As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEGMENTS OF LETTERS INTERMITTENTLY DISAPPEAR. FOUND UNIT DISPLAY TO FLUTTER AND GO DIM INTERMITTENTLY AFTER WARMED UP. REMOVED SMALL METAL FLAKES FROM DISPLAY BOARD AND CLEANED REAR CONNECTOR. NO HELP. FOUND UNIT TO HAVE HISTORY OF DISPLAY PROBLEMS.