What was found
R/H FLOOR SILL BTW F/S 310-319.7 HAS MULTIPLE AREAS WITH EVIDENCE OF CORROSION (C-CHECK RO 12/07/2021) REMOVED AND INSTALLED NEW FLOOR SILL FROM FS 280.00 TO FS 319.00 REF. BOMBARDIER DWG NO. SH670-30002 REV A, BOMBARDIER DWG NO. SH670-32170 REV M,CRJ 700 SRM 51-42-06-001-001-A01, CRJ700 SRM 51-42-21-001-001-A01, REPLACED HARDWARE AND ATTACH ANGLE. COMPLIED WITH FORM M-337 AND SKYWEST TASK CARD 51-900-1002-SKY.LEAK CHECK GOOD.