What was found
DURING INSPECTION, FOUND CORROSION ON LOWER SILL OF AFT PAX CABIN LOCATED BETWEEN FR 66 AND FR 68 AT LEVEL OF STR 23L, SSI 534147, L=1.00", W=0.500", D=0.003" APPROXIMATELY. REPLACED LOWER SILL L2 OF AFT PAX CABIN LOCATED BETWEEN FRAME 66 AND FRAME 68 AT LEVEL OF STR 23L IAW SRM 51-72-11 AND DWG D53480505, D53470150. MEASURES OF CORROSION ARE L=0.586", W=0.326", D=0.063".