As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE-C, CORROSION REPAIR TO OVERWING LONGERON OUTER CHORD AT BS 1241 RT SIDE. THE 2.75 CRACK ON LONGERON FWD END AT BS 1245 CRACK HAS NOW EXTENDED TO 3.75. CRACK FOUND PROPAGATED TO 3.75 REPAIRED IAW BOEING DRAWING 144U3542 AND EO B747-5310-0523.