As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT RIGHT A/C BAY MIDDLE HORIZONTAL STIFFENER IS CRACKED AT INBOARD END NEXT TO KEEL BEAM STATION 663 FORWARD SIDE. REMOVED CRACKED STIFFENER AND INSTALLED NEW HORIZONTAL STIFFENER AT AFT RIGHT A/C BAY PER AARD 51-10-05-1, REPAIR 1 AND BOEING DRAWING NUMBERS 111A1001 AND 111A1301.