As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR STRUCTURE, FORWARD WET AREA (SEC 41) INTERCOSTAL P/N:141A5410-3 LOCATED AT STA 277-STA 294.525, BL 0, WL 208.1 CRACKED AT FASTENER HOLE LOCATION. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL PART 141A5410-139 AT STA 277-STA 294.525 BL O WL 208.1 IAW SRM 51-40-02-09-0 AND DRAWING 141A5400 REV- SHT 20.