As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STIFF THROTTLE ON NR 1 ENG, WOULD NOT HOLD AUTO THROTTLES ENGAGED. FLIGHT LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. R & R ALL BEARINGS IN LT PYLON THROTTLE STRUT DRUM ASSEMBLY. ACFT FLEW 4.5 HOUR FCF WITH NO REPEAT. SYS GND CHECKED NORMAL OPERATION CLOSED.