What was found
LEVEL 2 CORROSION, CONFIRM DT EVALUATION FOR POSSIBLE FCS REPAIR STRINGER 43L, BTW FR 56 - FR 57 IN AFT CARGO BAY. CONFIRMED DT EVALUATION FOR POSSIBLE FCS LOCATED STRINGER 43L BTW FR56 TO FR 57 REPAIR NR 26 & DOES NOT MEET THE GENERAL REQUIREMENTS IAW ER/A 528512-14 AND MASTER ER/A 576025-14 REV.A APPROVED, REPLACED SECTION STRINGER 43L BTW FR54 -60 IAW SRM 51-42 11, SRM 51-72-11 , DWG D53470345, ISSUE: W, DWG E53470342, ISSUE: BC, DWG D19112-21915, REV. C & AA 2330-01350 REV:H MEASURE OF CORROSION WAS: L: 3.887 IN, W: 0.734 IN , (LP: 1760098, AIRCRAFT WAS GROUNDED)