As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DAMAGE TO THE AFT FUSELAGE FLOOR SUPPORT IN THE FORM OF CRACKS. THE FLOOR SUPPORT HAD A 0.50 INCH CRACK AND A 6.70 INCH CRACK. THE FLOOR SUPPORT HAD A 0.50” CRACK AND TWO CRACKS MEASURING 0.70 AND 0.80 IN LENGTH AT RIVET HOLES ALONG THE LENGTH OF THE BASE OF THE PART