As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SHORTLY AFTER TAKEOFF, THE CAPT`S PRIMARY FLIGHT DISPLAYS WERE MALFUNCTIONING, CAPTS EADI AND EHSI ARE BLANKING OUT INTERMITTENTLY , CREW ELECTED TO RETURN TO ORIGINATING AIRPORT. MX REPLACED NR 1 SYMBOL GENERATOR AND ACFT RETURNED TO SERVICE.