As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND AT KEEL BEAM BS 1250 LBL 10. CORROSION REMOVED PER SRM 51-10-02, FABBED DOUBLER PER 747 SRM 53-10-9 FIG 2 AND INSTALLED. ALODINED, PRIMED AND PAINTED PER 747 SRM 51-10-06. HFEC INSPECTION ON ALL OPEN HOLES PER 747 NDR PART 6 CHAPTER 51-00-11 FIG 16.