As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN PASSENGER COMPARTMENT FLOOR SUPPORT UPPER FLANGE HAS 1 INCH CRACK AROUND FASTENER'S HOLE LBL 47 BS 312 - 328. REMOVED CRACKED FLOOR SUPPORT IAW SRM 51-40-02. LOCATED & DRILLED NEW FLOOR SUPPORT IAW SRM 51-40-02 INSTALLED NEW INTERCOSTAL IAW SRM 51-40-02.