As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND DURING ROUTINE SCHEDULED MAINTENANCE, MAIN CABIN FLOORBEAM HAS CORROSION AROUND CLIP NUT HOLES AT BS 312, LBL 3 AND LBL 10, REF NR 20622. REPAIRED FLOORBEAM IAW B727 SRM 53-10-8, FIGURE 9. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)