What was found
RT AFT EMERGENCY DOOR SILL COVER HAS CORROSION. C-CHECK RO 12/26/2020. BLENDED CORROSION ON RT AFT EMERGENCY DOOR SILL COVER AND DETERMINED THAT PART IS OUT OF LIMITS ORIGINAL=.071, REF DWG MATERIAL REMOVED=.0085 REMAINING =.0625, REF CRJ 900 SRM CAL TOOL USE TUC9236 CAL DUE DATE 30-JUN-21. NEW PART RECEIVED P/N SH670-36552-1 PLUS HARDWARE 8 EA P/N NAS8703A2 PLUS GRIP TAPE P/N9341352-5. INSTALLED NEW RT AFT EMERGENCY DOOR SILL COVER, REF CRJ900 SRM, AND NEW ANTI SKID ON COVER SILL REF CRJ900 AMM.