What was found
CORROSION ON LH FLOOR SILL P/N: 601R31133-47 AND P/N: 601R31133-77 AT FS 574.00+ 12 TO FS 605+12 AND LBL42. CRACK 0.300Ï¿½L X 0.010Ï¿½W ON L/H FLOOR LANDING PLATE P/N: 601R35001-63 AT FS 605.00 AND LBL 42. AIRCRAFT REMOVED FROM SERVICE. REMOVED CORROSION AT FLOOR SILL SUPPORT LOCATION P1-P13 BETWEEN FS574.00+12 TO FS605+12 AND LBL42 IAW BOMBARDIER GREO 601R-53-00-526 REV (--) DATED 22 MAY 2013. RESTORED PROTECTIVE FINISH. PREFORMED EDGE BLEND REMOVING CRACK AT LBL 42 IAW ASAP EA # AWAC-CRJ253-01985 DATE 6/3/2023 REV B. ALL WORK WITHIN LIMITS WAS PERFORMED IAW CRJ200 SRM 51-21-00 REV 39, SRM 51-21-11 REV 39, SRM 51-21-16 REV 39, SRM 51-26-00 REV 39, SRM 53-31-43 REV 39, AND SRM 53-00-00 REV 39. WORK PERFORMED UNDER WORK ORDER 003911.