What was found
PRESSURE FLOOR SILL ANGLE AT FS 508 TO FS 517 AND LBL 36 TO LBL 40 HAS CORROSION. AIRCRAFT REMOVED FROM SERVICE. REMOVED CORROSION FROM PRESSURE FLOOR SILL ANGLE AT FS 508 TO FS 517 AND LBL 36 TO LBL 40. BLEND MEASURED L=1.8'' AND W=1.5'', REF BOMBARDIER REO NR 601R-53-41-666 REV C DATED 2012-11-06 AND CRJ-200 SRM 51-21-06. PERFORMED HFEC INSPECTION ON BLENDED AREAS OF PRESSURE FLOOR SILL ANGLE AT FS 508 TO FS 517 AND LBL 36 TO LBL 40, REF BOMBARDIER REO NR 601R-53-41-666 REV C DATED 2012-11-06 AND CRJ-200 NDTM PART 1 REV 41 51-20-06 NO INDICATIONS NOTED. EDDY CURRENT TESTER S/N 200051301 CAL DUE 01/24/21. PERFORMED UT THICKNESS MEASUREMENTS ON BLENDED AREAS OF PRESSURE FLOOR SILL ANGLE AT FS 508 TO FS 517 AND LBL 36 TO LBL 40, THICKNESS MEASURES 0.078'', REF BOMBARDIER REO NO: 601R-53-41-666 REV C DATED 2012-11-06 AND CRJ-200 NDTM PART 4 REV 41 51-00-001 UT GAUGE S/N 151136107 CAL DUE 09/16/21. EVALUATED BLENDED AREA OF PRESSURE FLOOR SILL ANGLE AT FS 508 TO FS 517 AND LBL 36 TO LBL 40, ORIGINAL THICKNESS MEASURED 0.080''. REMAINING THICKNESS MEASURES 0.078''. FOUND TO BE WITHIN LIMITS, REF BOMBARDIER REO NO: 601R-53-41-666 REV C DATED 2012-11-06.