What was found
PDIS 359 76-10 6450 14FEB20 ONT OPEN U LOGPAGES:3200450 DURING DESCENT NUMBER 2 THROTTLE WOULD NOT DECREASE BELOW APPROXIMATELY 71% N1. DURING ATTEMPTED THROTTLE MOVEMENTS IN AUTO AND MANUAL THROTTLE NUMBER 2 THROTTLE WOULD ADVANCE ON IT'S OWN. DUE TO THIS WE DECIDED TO SHUTDOWN NUMBER 2 ENGINE IAW THE ENGINE SHUTDOWN INFLIGHT, QRH CHECKLIST. WE DECLARED AN EMERGENCY WITH ONTARIO APPROACH CONTROL. FACT 14FEB20 12:27 ONT COMPLIED WITH E.A. 8-7600-T0352444, CLEAN AND PURGE ENG #2 THROTTLE CABLE, REF AMM 76-11-01-2. OPS CHECKS GOOD. COMPLIED WITH AMM 72-00-00-6, NO OIL PRESSURE INSPECTION DUE TO INFLIGHT SHUTDOWN, CHECKS GOOD. A/C OK FOR SERVICE.