As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO BAY CORROSION ON PREVIOUS REPAIR AT STA 747 AT STR 26R 27R.. DUE TO NO DAMAGE ON PREVIOUS REPAIR DOUBLER STA 747 AT STR 26R 27R REMOVED OLD REPAIR FABRICATED TREATED PRIMED AND INSTALLED NEW REPAIR IAW 737 400 SRM 51 40 02 53 00 07 FIG 201 REPAIR 3.