What was found
SHIP 0670 CORROSION ON LOWER/UPPER SURFACE OF STRINGER RBL 7.55 BTW STA 1340 TO STA 1445 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: SUMMARY OF NRC 00515: CORROSION WAS REMOVED PER B757-200 SRM 51-10 MENSUREMENT THICKNESS WAS ACCOMPLISHED ON LOWER/UPPER SURFACE OF STRINGER RBL 7.55 BTW STA 1340 TO STA 1445 AT AFT CARGO COMPARTMENT. ORIGINAL THICKNESS (OT) IS: 0.063 INCHES AND MINIMUM REMAINING THICKNESS (MRT): 0.42 INCHES PER B757-200 SRM 53-00 STRINGER RBL 7.55 BTW STA 1340 TO STA 1445 WAS REPLACED PER B757-200 SRM B757-200 SRM 51-40. (0099814)