As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVE HINGE SUPPORT RIB, FOUND ANOTHER SIDE RIB MATING SURFACE GOT CRACK AT RIB 20, 19 INCH. REMOVED THE CRACKED BOX RIB IAW SRM 51-40-21. FABRICATED RIB MATERIAL 7075-T7651 IAW DWG A57247040. TRANSFERED DRILL THE FASTENER'S HOLE AND ASSEMBLED RIB IAW SRM 51-40-21 AND 51-72-10. 4. WET INSTALLED RIB.