What was found
UNDERFLOOR CORROSION. INTERCOSTOAL 21L FROM FS310.00 TO FS233.00 CORRODED (C-CHECK RO 3/11/2022) REMOVED AND INSTALLED NEW REPLACEMENT BACK UP SILL (P/N SH670-31822-1S) ONTO STGR21L BETWEEN FS310.00 AND FS333.00. REF BOMBARDIER DWG# SH670-31810 REV AE AND CRJ700 SRM'S 51-42-06-001-001 A01 AND 51-42-21-001-001 A01. COMPLIED WITH SKYWEST TASKCARD 51-900-1002-SKY. REFER TO CONTINUATION SHEET BLOCK 9 FOR CLARIFICATION OF DISCREPANCY LOCATION FROM FS 319.00 TO FS 333.00.