What was found
WHILE IN HEAVY CHECK FOUND AFT CARGO COMPARTMENT CORROSION ON STGR29R FROM FR76 - FR81 BLENDED OUT CORROSION FROM FR 76 THROUGH FR 81, STRINGER 29R/OUTBOARD. REF SRM 51-10-03. FR 76-77, 11 HOLES BLENDED, MAX MATERIAL LOSS 0.034". FR 77-78, 6 HOLES BLENDED, MAX MATERIAL LOSS 0.028". FR 78-79, 12 HOLES BLENDED, MAX MATERIAL LOSS 0.030". FR 79-80, 2 HOLES BLENDED, MAX MATERIAL LOSS 0.030". FR 80-81, 2 HOLES BLENDED. MAX MATERIAL LOSS 0.025". ETD2020-170-003859-B WAS USED TO REPAIR THE STRINGER BY CUT OUTS AND DOUBLER INSTALLATION.