As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPPORT TASK: MAIN CABIN STA 399 RBL 45-61 FLOOR SUPPORT INTERCOSTAL HAS CORROSION ON BOTTOM. TRANSCRIBED FROM HAECO GSO NRC# 9 283237 REMOVED AND REPLACED FLOOR SUPPORT FROM STA 399 RBL-45 TO 61 IAW B757-200 SRM 51-40-02 , SRM 51-40-05 AND BAC DWG 141N5162. HAE CO GSO MECH V901427 INSP QC456