As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O, NR 3 ENG THROTTLE DID NOT AFFECT ENGINE PRODUCTION, APPEARS AS IF THROTTLE LINKAGE DISCONNECTED. SHUT ENGINE DOWN USING NORMAL PROCEDURES. FOUND A BOLT HAD FALLEN OUT OF LINKAGE ON NR 3 ENGINE. REINSTALLED COTTER PIN AND CHECKED RIG WHICH WAS GOOD.