As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6548 - IAD-ORF - DURING TAKEOFF, EXPERIENCED A NR 2 AHRS SYSTEM FAILURE. AIRCRAFT RETURNED TO IAD AND THE GATE WHERE THE MAINTENANCE TECHNICIANS TROUBLESHOT THE DISCREPANCY AND FOUND THAT THE NR 2 AHRS COMPUTER HAD FAILED. MAINTENANCE REPLACED THE NR 2 AHRS COMPUTER IAW WITH ALL MAINTENANCE PROCEDURES. AIRCRAFT WAS THEN RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)