As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT WING UPPER REAR SPAR SIDE OF BODY SPLICE NR 6 FASTENER HOLE FOUND CORROSION AT UPPER SPLICE FITTING APPROX 0.030" IN LENGTH RUNNING FORWARD O/B, CORROSION BLEND OUT 0.030" IN LENGTH. LEFT NR 6 BOLT HOLE BUSHING REPAIRED AS PER EO NR B747-5740-17032.