As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CI 351/8 ATL/ANC ATB DUE TO NR 4 ENGINE STALL: AT SPEED V2 AFTER TAKEOFF, ENGINE NR 4 BEGAN SURGING FOLLOWED BY STALLING AND AIRFRAME SHUDDER. ENGINE NR 4 THRUST LEVER WAS RETARDED TO STABILIZE THE ENGINE. FUEL DUMPED TO 302 KG AND RETURNED FOR LANDING 27R ATC. NO ENGINE EXCEEDANCE NOTED. REMOVED AND REPLACED NR 4 ENGINE IAW WO A717101GTI.