As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: C, FX - LOWER FUSELAGE EXTERNAL SKIN LAP JOINT ATT RIVET HOLE FOUND OUT OF OVERSIZE CONTERSINK AT STA 2070 TO STA 2080 STRG 46L ( ONE EA ) ( DURING SKIN PANEL REMOVED ). SKIN REPAIRED IAW SRM 53-30-03 FIG 17 SUBSEQUENT INSPECTION ARE NECESSARY FOR THIS CATEGORY B REPAIR REFER TO SRM 53-30-03 FIG 17 TABLE III FOR INSP REQUIREMENT AND EO B747-5330-17977-B.