As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE WILL NOT REDUCE TO NORMAL FLIGHT IDLE WITH THRUST LEVERS REDUCED TO IDLE POSITION FROM TOP OF DESCENT. NR 2 ENGINE N 1 REMAIN AT 50-55% UNTIL APPROXIMATELY FL250 THEN SLOWLY REDUCES TO NORMAL. FLIGHT IDLE IN REMAINDER DESCENT. R&R NR 2 ENGINE T2 TEMPERATURE SENSOR & CIT SENSOR IAW MM.