As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE COMPASS CARD ON NR 2 RADIO MAGNETIC INDICATOR FROZE IN POSITION. AFTER SEVERAL MINUTES THE COMPASS CARD STARTED MOVING BUT IS 180 DEGREE OFF OF AIRCRAFT HEADING. THE CREW RETURNED TO KLRD WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED NR 2 RADIO MAGNETIC INDICATOR. OPERATIONAL CHECK GOOD IAW DC8 MAINTENANCE MANUAL 34-01. AIRCRAFT WAS RETURNED TO SERVICE.