As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING P4-LAS SCHEDULED C-3 CHECK UNDER JOB CARD HC5314, FOUND THE FS 737 UNDERFLOOR BULKHEAD ASSEMBLY WITH DETERIORATED FINISH AT RBL 20-40, WL 145. REPAIR BY REPLACEMENT ACCOMPLISHED, IAW LOCKHEED SMP583 SRM, CH 51-60 & 51-70 NR 1000303407.