As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF THE CAPTAIN'S RMI OFF FLAG WITH HDG LIGHT ON COMPARATOR. ACFT RETURNED TO DEPARTURE WHERE IT LANDED WITHOUT INCIDENT. POST FLIGHT INSP WAS PERFORMED. THE NR 2 COMPASS RACK AND RT FLUX VALVE WAS REMOVED AND REPLACED. OPS CHECK OF THE NR 2 COMPASS SYS WAS SATISFACTORY. NO OTHER DEFECTS WERE NOTED. ACFT WAS RETURNED TO SERVICE