What was found
DAMAGED HOLE FOUND AT FS 621-105'' AND BETWEEN STRG 16L TO STRG 17L. AIRCRAFT REMOVED FROM SERVICE. REMOVED NUT PLATE AT FS 621-105'' AND BETWEEN STRG 16L TO STRG 17L, REF CRJ-200 SRM 51-45-00 REV 38. OPENED ELONGATED HOLE TO A NEW DIAMETER OF 0.284'', REF: EA NR AWAC-CRJ253-01541 ISSUE DATE: 12/20/2020 REV: A. MEASUREMENT TOOL: CALIPER S/N 13/350144 CAL DUE 11/11/2021. PERFORMED HFEC INSPECTION ON OPENED ELONGATED HOLE AT FS 621-105'' AND BETWEEN STRG 16L TO STRG 17L, REF EA NR AWAC-CRJ253-0154 ISSUE DATE: 12/20/2020 REV: A. AND CRJ-200 NDTM PART 1 51-20-06 REV 42. EDDY CURRENT TESTER S/N 60007150515 CAL DUE 10/09/2021. REMOVED NUT PLATE AT FS 621-105'' AND BETWEEN STRG 16L TO STRG 17L REF CRJ-200 SRM 51-45-00 REV 38.