As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7600 - IAD-BGM - DURING CLIMB, MADE AN UNSCHEDULED LANDING DUE TO NR 1 AHRS FAILED AFTER TAKEOFF. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED NR 1 AHRS. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)