As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6264 - BTV-IAD - DURING CRUISE, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO NR 2 DADC AND NR 2 AHRS FAILED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND RERACKED NR 2 DADC AND NR 2 AHRS. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)