As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT MAIN CABIN FLOOR SUPPORT BEAM, PREVIOUS REPAIR LOWER SPLICE STRAP HAS CORROSION AT SEVERAL SPOTS LBL-10, BS947.5. GROUNDED - YES. REMOVED LOWER SPLICE STRAPS 2EA FROM PREVIOUS REPAIR AT BS947.5 LBL-10 IAW B737-800 SRM 51-40-02.FABRICATED. LOCATED, DRILLED , ALODINED AND PRIMED 2EA STRAPS IAW B737-800 SRM 53-70-51-2R-5 AND B737-800 SRM 71-40-02.APPLIED CIC TO REPAIR AREA IAW B737-800 SRM 53-70-51-2R-5.THIS IS A CATEGORY "A" REPAIR.