What was found
FRAME CORRODED ON BOTH SIDES - FS 549 BTWN STGRS 18L/17L (C-CHECK RO 10/29/2021) REPLACED FRAME FS 549 BTWN STGR 18L & 17L REF REO 670-53-31-714 REV--, 2021-09-21, AND REF CRJ 900 SRM 53-00-06-201-001-A03, CRJ 700 SRM 51-42-06-001-001-A1, CRJ 700 SRM 51-42-21-001-001-A01 REV 38 JUL 25/2020 AND DRAWING NO. SH670-33100 REV -K SEE CONTINUATION CARD FOR WORK PERFORMED COMPLIED WITH TASK CARD 51-900-1002-SKY.