What was found
DURING ACCOMPLISHMENT OF EO 1-60000-3, CORROSION WAS FOUND DIRECTLY UNDER THE DRAIN SCREEN LOCATED AT APPROXIMATELY LBL 70. THE RESULTING BLENDS, WITH A MAXIMUM DEPTH OF .155, ARE SHOWN ON FIGURE 1. TO FACILITATE INSTALLATION OF A REPAIR DOUBLER UNDER THE LBL 74.81 FLOORBEAM LOWER CHORD. THE CHORD WAS CUT AT APPROXIMATE FS 938. A REPLACEMENT SECTION WILL BE FABRICATED PER DAL DWG 53-0900-004, AND WILL INCORPORATE A MILLED STEP IN THE LOWER FLANGE TO ACCOMMODATE THE DOUBLERS. OTHER DAMAGES EXISTS, REF ER/A 330720-14.