As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GSP-LGA - FLT 926 - DURING CLIMB-OUT OF GSP, NR 1 NAV DISPLAY LOCKED UP. CAPTAIN WAS UNABLE TO SWITCH TO ROSE OF SELECT HEADING. FLIGHT DIVERTED TO CLT. NO EMERGENCY DECLARED AND FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED LEFT EFIS CONTROL PANEL. OPERATIONAL CHECK WAS GOOD. (M)