What was found
UPON REMOVAL OF LAV SERVICE BOX AND SKIN STIFFENERS, FOUND EXCESSIVE CORROSION EXTENDING UNDER FR 12A LT AT STR 37L. REMOVED LEVEL ONE CORROSION IAW SRM 51-74-10. MATERIAL LOSS WAS 100 PERCENT OF ANGLE AT FR 12A AND STR 37L, FOUND TO BE OUT OF LIMITS IAW SRM 51-10-13. FABBED ANGLE IAW DWG A53610986 AND INSTALLED ANGLE USING THE FOLLOWING SRM REF 51-71-50, STEP 4, FIG 201, SRM, 51-21-10 PG 8-9 AND 51-75-10, 51-40-44, 51-71-50, FIG 201.