As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENG REAR ENGINE MOUNT THRUST LINK FWD LUG LOWER OF BORE FOUND SUSPECTED CRACK INDICATION WHICH WAS GREATER THAN 40 PERCENT FSH, EXCEEDED LIMIT. REFER TO EO NR B747-7120-22596-A FOR THRUST LINK REPLACEMENT. ENGINE REMOVED AND REINSTALLED ON TASK CARD NR 5000.