What was found
* FS 533.00 FRAME BELOW L/H FLOOR SILL AT APPROX STGR 19L CORRODED AFT SIDE (C-CHECK) RO 2/1/2021 REPAIRED FS 533.00 FRAME BELOW L/H FLOOR SILL AT APPROX STGR 19L REF CRJ 900 SRM 53-00-06-201-001-A03 , CRJ 900 SRM 51-42-06-001-001-A01 , DWG SH690-33121 REV. B., DWG SH690-33174 REV. B., REO 690-53-31-540, REV--, DATED 2020-12-22.COMPLIED WITH 51-900-1002-SKY AND PRESSURE CHECK GOOD . SEE CONTINUATION CARD FOR DETAILS