What was found
INSPECTION TYPE: C, CORROSION FOUND ON THE AUX TANK UPPER SURFACE STA 1209 RBL 97 IN THE C R CABIN. RHS APPROX 97 STA 1209 LONGERON NR 18 AUX TANK UPPER SKIN CORROSION REMOVED PER SRM 57-20-00 FIG 12 ORIG THK APPROX 0.150 INCH REMAIN THK APPROX 0.106 INCH FOUND EXCEEDED LIMIT. REPAIR DOUBLER FABRICATED PER EN 1 188-04 & PROTECTED PER SRM 51-21-01 VOL 2 REV 35. REF TO UPS ENGINEERING FILE MD11-57-20016.