As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK A .75 INCH CRACK WAS FOUND ON PARTITION FRAME IN AFT CARGO COMPARTMENT FORWARD BULKHEAD, UPPER RT CORNER. MAINTENANCE PERFORMED HFEC INSPECTION TO DETERMINE WHERE CRACK ENDS; STOP DRILLED CRACK; FABRICATED A REPAIR DOUBLER; INSTALLED REPAIR PART IAW AWA ER 26-5314-00011-JS4.