What was found
L/H WING (INBD) GROUND SPOILER (UNDERSIDE SURFACE) "CHAFED" ALONG THE LEADING EDGE FROM MECHANICAL CONTACT WITH STAINLESS CLOSE OUT STRIP ATTACHED TO UPPER WING SKIN (MARKED). (C-CHECK) RO 2/25/2021 REMOVED CHAFING DAMAGE ON UNDERSIDE LE OF LH WING GROUND SPOILER REF CRJ200 SRM 51-12-00 / ORIGINAL MATERIAL THICKNESS=0.050/0.025 (CHEM MILLED), AREA OF CONCERN IS IN 0.050, REF: CRJ 200, SRM 57-71-00 (FIGURE 1), MATERIAL REMOVED=0.013, REMAINING MATERIAL=0.037, FOUND TO BE OUT OF LIMITS DUE TO 10% MATERIAL LOSS AND GREATER THAN 30% BLEND AREA. REF: CRJ 200, SRM 57-00-00 / COMPLIED WITH MHIRJ REO 601R-57-71-562 REV -- 2021-02-03 STEPS 1 - 4.