As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER WING FUEL TANK, BOTTOM SKIN LONGITUDINAL BEAM 4RT OTBD ATTACHED SPLICE FITTING, CORRODED AT FRAME 40. BLENDED OUT & SMOOTHED THE CORRODED AREA IAW SRM 51-74-10. THE DAMAGE WAS OUT OF THE DESIGN THICKNESS TOLERANCE IAW DWG A57112070. REPLACED IAW SRM 51-40-21. THIS IS A MAJOR REPAIR IAW GMM 6-2-100.