As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER 2 ENG UNABLE TO PRODUCE COMMANDED THRUST IN DETENT DURING CRUISE & NR 2 N1 ABOUT 1% BELOW COMMANDED THRUST. NR 2 ITT WAS ON BORDER OF AMBER A FEW TIMES. NR 2 ITT 50 + WARMER COMPARED TO NR 1 ENG ITT. NR 2 N2 APPROX 4% HIGHER THAN NR 1. RETURNED & AFTER LANDING GOT E2 EXCEED MSG.