As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH ELECTRONIC INSTRUMENT DISPLAY UNITS WERE IDENTIFIED AS GOING BLANK DURING OPERATION OF AIRCRAFT. NR 1 SYMBOL GENERATOR AND NR 1 AIR DATA COMPUTER WERE FOUND TO BE FAULTY AND WERE REPLACED. AFTER REQUIRED OPERATIONAL CHECKS THE DISPLAYS OPERATED CORRECTLY AND AIRCRAFT WAS RETURNED TO SERVICE.