As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW/IAD - FLT 7312 - DURING TAKEOFF, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO AHRS FAILURE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND RE-RACKED NR 1 AND NR 2 SYMBOL GENERATOR. OPS CHECK OK. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)