What was found
(LOG 0417930) CORROSION IN AFT MAIN CABIN FLOOR STRUCTURE SUPPORT, APROX BS.950 LBL.52. REMOVED AND REPLACED INTERCOSTAL P/N: 147A5660U22 IAW B737 SRM 51-40-02-OG.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(LOG 0417930) CORROSION IN AFT MAIN CABIN FLOOR STRUCTURE SUPPORT, APROX BS.950 LBL.52. REMOVED AND REPLACED INTERCOSTAL P/N: 147A5660U22 IAW B737 SRM 51-40-02-OG.