What was found
CORROSION ON AFT CARGO BAY SIDEWALL TO FLOOR SUPPORT AT RBL 21 BS 727D+19; BS 727E+1-727E+7; BS 727E+11-727E+17; BS 747+1-747+11; BS 727E+14; BS 727E+18. ; / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 727D+19 RBL 21 WL 156 IN 1'X1' AREAS WITH 0.015 REMOVED FROM ORIG 0.040; FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DEPTH GAUGE ATS 2678 S/N UNKNOWN. FLOOR TO SIDEWALL SUPPORT TO BE REPLACED ON CUST CARD# TTG8Q009QEUW; [02] VERIFIED CORRECTIVE ACTION ENTRY 1. CARD COMPLETE.