As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 350 NR 2 ENG SURGED BY INCREASING & DECREASING N1 & N2 RPM'S. NO ITT LIMITS WERE EXCEEDED. EICAS CHECK MSG ON BOTH MFD'S WHILE ENG WAS SURGING. THE ACFT YAWED & HAD TO BE TRIMMED AFTER APPROX 5 MINS. THE NR 2 ENG WAS NORMAL, WITH NO MSGS NOTED. ALL ENG PARAMETERS WERE NORMAL. TRANSFERRED TO NRWC 662-DFW-02316. R & R RT FPMU IAW RR MM 73-21-10. OPERATIONS CHECKED GOOD & NO LEAKS NOTED AT THIS TIME. REF NRWC 662-DFW-02316.