What was found
AFT CARGO R/H FWD SHIELD FROM ST 767 TO 787 ; RBL 20 AROUND THE 4 FASTENER HOLE HAVE COROCION. (228-008) AFT CARGO R/H FWD SHIELD FROM ST 767 TO 787 RBL 21 AROUND THE 4 FASTENER HOLE HAVE CORROSION. (228-008) [TTG8Q00MGCG3]<[01] REMOVED CORROSION AT R/H FWD SHIELD BETWEEN STA.; 767 AND STA. 787; PER REF SRM 51--10-02-0G-0; RBL 21; ORIGINAL THICKNESS; 0.050'; REMOVED; 0.030'; REMAINING; 0.020'; FOUND OUT OF LIMITS PER REF SRM 53-60-15-1A-1; FIG 103; DET. C; REMOVED AND INSTALLED NEW SHIELD PLATE ON AFT CARGO; BETWEEN STA. 767 AND STA. 787; PER REF SRM 51-40-02-0G-0 AND DRAWING # 146A 8127.;[02] VERIFIED STEP # 1.