What was found
* CORROSION ON FUSELAGE AT MULTIPLE FASTENER LOCATIONS FOR PANELS 191BB AND 192BB BETWEEN APPROXIMATELY FS 409+64 AND FS409+100 BELOW STR20L AND STR20R (MARKED). (C-CHECK) RO 3/25/2020 REMOVED CORROSION ON FUSELAGE AT MULTIPLE FASTENER LOCATIONS FOR PANELS 191BB AND 192BB BETWEEN APPROXIMATELY FS 409+64 AND FS409+100 BELOW STR20L AND STR20R. REF CRJ200 SRM. NDT COMPLIED WITH PERF'D U/T INSP ON FUSELAGE SKIN BLEND OUTS IAW CRJ200 NDTM USING TUC7933 CAL DUE 04/30/20. MINIMUM THICKNESS IS .054. NDT REPORT ATTACHED. EVALUATED BLENDED AREAS. (TOTAL 35 FASTENER HOLES) ORIGINAL MATERIAL THICKNESS .058€? REF CRJ200 SRM PAGE 2 AND 5. REMAINING THICKNESS AT FOLLOWING LOCATIONS #1 .056€?, #2 .057€?, #3 .058€?, #4 .057€?, #5 .057€?, #6 .057€?, #6 .057€?, #7 .056€?, #8 .057€?, #9 .057€?, #10 .057€?, #11 .057€? #12 .056€?, #13 .057€?, #14 .056€?, #15 .056€?, #16 .054€? #17 .057€?, #18 .055€?, #19 .057€? #20 .057€?, #21 .056€?, #22 .057€?, #23 .057€? #24 .056€?, #25 .058€?, #26 .055€?, #27 .058€?, #28 .056€?, #29 .057€?, #30 .057€?, #31 .057€?, #32 .056€?, #33 .055€?, #34 .057€?, AND #35 .057€?. NO ALLOWABLE DAMAGE IN BLENDED AREAS THEREFORE FOUND TO BE OUT OF LIMITS. REF CRJ200 SRM ALL THICKNESS WERE MARKED ON PART. SEE STEP 3 OF THIS CONTI