As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE STALLED AT 55KTS DURING TAKEOFF ROLL. FLIGHT CREW ABORTED THE TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE ACCOMPLISHED TSM 71-00-00-810-A14-A. REPLACED RIGHT ENGINE IP CHECK VALVE PER TASK 36-11-41. AIRCRAFT WAS GROUNDED.