As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SBN - FLT 5751 - DURING CRUISE, THE NR 1 ENGINE TORQUE BEGAN TO SURGE PLUS/MINUS 5 PERCENT. TORQUE PEAKED AT 120 PERCENT FOR 1 SECOND THEN ROLLED BACK TO 0 PERCENT. ENGINE WAS SHUTDOWN. MAINTENANCE REMOVED AND REPLACED THE NR 1 MFC. POWER ASSURANCE RUNS WERE PERFORMED AND ALL PARAMETERS WERE FOUND TO BE WITHIN LIMITS. (M)