As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING M-CHECK, FOUND FWD CARGO BETWEEN STA 680 AND STA 660, 36" LT OF CTR THE FLOOR SUPPORT IS CRACKED. REMOVED FLOOR SUPPORT AND INTERCOSTAL WEB CRACKED. FABRICATED REPLACEMENT INTERCOSTAL WEB LOCATED AND DRILLED NEW INTERCOSTAL WEB. NDT VERIFIED FLOOR SUPPORT NO CRACKS. INSTALLED INTERCOSTAL WEB AND FLOOR SUPPORT IAW REF DWG NR 143N5264 AND SRM 51-40-02, PARA 4B AND 7D PG2 AND 7 AND SRM 51-40-05, PARA 2, PG 1.