As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR PNL 69 IS CRACKED ON END AT FASTENER HOLE REMOVED CRACKED EXPANSION JOINT IAW DC9 SRM 51-30-2. LOCATED AND DRILLED NEW EXPANSION JOINT, P/N 9957925-109 IAW SRM 51-10-4. INSTALLED NEW EXPANSION JOINT TO FLOOR PANEL IAW SRM 51-30-2 P102.