As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - FLT 3056 - THE CREW REPORTED THE NR 2 EADI DISPLAY WENT BLANK IN-FLIGHT MOMENTARILY. THE AIRCRAFT RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 VERTICAL GYRO IAW COLLINS CMM AND PERFORMED OPERATIONAL CHECKS WITH NO DEFECTS NOTED. THE AIRCRAFT WAS RELEASED TO SERVICE. (X)