As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: C, RT SIDE OF BS 1241 UPPER REAR SPAR SIDE OF BODY SPLICE PLATE AREA NR 5 HOLE FOUND CORRODED CRACKED AT SPAR CHORD HORIZONTAL FLANGE LWR SURFACE WITH DEPTH 0.060 INCH & LENGTH 0.050 INCH APPROX. RIGHT BS 1241 UPPER CHORD BOLT HOLE NR 5 REPAIRED AS PER EO B747-5740-17032-C.