As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-16 CHECK 2 EACH 1.25 INCH CRACKS WERE FOUND ON PASSENGER CABIN FLOORBEAM AT BS 674, RBL 45. MAINTENANCE CUT OUT DAMAGE ON FLOORBEAM AT BS 674, RBL 45; FABRICATED A REPAIR EXTRUSION AND 3 EACH REPAIR PLATES; INSTALLED REPAIR PARTS IAW B737-200 SRM 51-40-04 FIG 1 PG 1.