What was found
DURING CURRENT C-CHECK, AT SIAEC, FOUND KEEL BEAM CHORD, INBOARD LOWER FLANGE UPPER SURFACE CORRODED, AT BS 1330/1337 AND 1397, LBL 6. REMOVED CORROSION BY BLENDING. HFEC INSPECTED AREAS OF BLEND OUT AND FASTENER HOLES FOR ADDITIONAL CORROSION/CRACKS. NO ADDITIONAL CORROSION/CRACKS FOUND. MEASURED BS 1330/37, NO MORE THAN 20 PERCENT OF THICKNESS REMOVED TO A DEPTH OF .088 REMAINING AFTER BLEND OUT. MEASURED BS 1397, ORIGINAL THICKNESS .235, AFTER BLENDING .135 REMAINING. (M)