What was found
AFT WET AREA - CORROSION AT LOWER MOP SILL BS 967+2.5; BS 967+6; BS 967+11; BS 967+13; BS 967+17 LBL 46 WL 208 (MARKED)<[01] UPDATED STEP 10;[02] CERTIFY STEP 10;[03] SUMMARY STATEMENT; REMOVED CORROSION ON MOP SILL BS 967 +25 TO BS 967+17 LBL 46; WL 208; FOUND DAMAGE TO BE OUT OF LIMITS PER SRM 53-70-15-1A-1; REMOVED AND REPLACED WITH NEW AFT L/H MOP SILL.;[04] COMPLETED STEP 9.;[05] REMOVED AND REPLACED LOWER MOP SILL BS 967+2.5; BS 967+6; BS 967+11; BS 967+13; BS 967+17 LBL 46 WL 208. ORIGINAL THICKNESS IS 0.080'; BS967+2.5: REMAINING THICKNESS IS 0.061'. FOUND TO BE OUT OF LIMITS IAW SRM 51-537015-1A-1 PAR. 4. E (2).<BR>INSTALLED NEW MOP SILL IAW SRM 51-40-02-0G-0; SRM 51-40-05-0G-0; AND BOEING DWG 147A8501.