What was found
(LOG 0898738) CORROSION AROUND FASTENER HOLE IN MAIN CABIN FLOOR STRUCTURE SUPPORT UPPER SURFACE APPROX' BS.318 RBL.12.5. FABRICATED STRUCTURE SUPPORT IAW B737 SRM 53-10-51-0I-2 AND ER/A .FORMED PART IAW B737 SRM 53-10-51-1.RECEIVED MATERIAL BAC1505-100403 7075-O FOR FABRICATE STRUCTURE SUPPORT IAW B737 SRM 53-10-51-1.FORMED PART IAW B737 SRM 53-10-51-0I.RECEIVED PART OF HEAT TREATMENT 7075-O TO T6 . PER ER/A 625298-14 REV ORIGINAL IT IS ACCEPTABLE TO USE BAC1505- 100403 7075O AND HEAT TREAT TO T62 PER BAC5602. INSTALLED NEW FLOOR SUPPORT IAW B737 SRM 51-40-02.