As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FUEL QUANTITY DISPLAY ON UPPER DISPLAY UNIT BLANKS INTERMITTENTLY. REMOVE AND REPLACED NUMBER 2 ELECTRIC DISPLAY UNIT AND INSTALLED REQUIERED SOFTWARE. SYSTEM OPERATIONAL CHECKS NORMAL. PER AMM 31-62-00. FAULT CLEARED.