As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN FLOOR BEAM Y-765 HAS CORROSION FR64 TO FR66. REMOVED CORROSION ON AFT CABIN BEAM Y-765 FR64 TO FR66 L=1.3" W= 1.0" D=0.91" FOUND TO BE OUT OF LIMITS IAW SRM 51-41-15 REMOVED AND REPLACED BEAM Y-765 IAW SRM 51-42-11. EMP: V934143 WC: 58844 STA: ST ENG BFM