What was found
LT HAND FLOOR SILL ANGLE AT FS 468 TO FS 477, LBL 36 TO LBL 38 HAS CORROSION. AIRCRAFT REMOVED FROM SERVICE. REMOVED CORROSION ON PRESSURE FLOOR SILL ANGLE AT FS 468 TO FS 477, LBL 38, REF REO 601R-53-41-666 REV-C DATED 2012-11-06 AND CRJ 200 SRM 51-21-06 REV 38. REWORK AREA MEASURES 1.5"L X 1.2"W. PERFORMED UT THICKNESS MEASUREMENT ON BLENDED AREA OF PRESSURE SILL ANGLE AT FS 499 TO FS 501, RBL 42, ORIGINAL THICKNESS 0.080" BLENDED THICKNESS .074", REF REO 601R-53-41-666 REV-C DATED: 2012-11-06 AND CRJ 200 NDTM PART 4 REV 41 51-00-001. UT THICKNESS GAUGE S/N 151136107 CAL DUE: 09/16/21. PERFORMED HFEC INSPECTION ON BLENDED AREA OF PRESSURE FLOOR SILL ANGLE AT FS 468 TO FS 477 LBL 38, NO INDICATION NOTED, REF REO 601R-41-666 REV-C DATED:2012-11-06 AND CRJ 200 NDTM PART 1 REV 41 51-20-06. EDDY-CURRENT TESTER S/N 20051301 CAL DUE: 01/24/21.