What was found
STRINGER, STGR 20R, HAS CORROSION BETWEEN APPROXIMATELY FS 364 TO FS 394 AND FS 421 TO FS 437, MARKED. C-CHECK RO 1/17/2021. REMOVED CORROSION ON STRINGER 20R FS 364 - 394 "OUT OF LIMITS", REF CRJ700 SRM 51-21-06-001-001-A01, SRM 51-21-03-101-007-A01. REMOVED AND REPLACED STRINGER 20R FS 349-FS 485, REF CRJ700 SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01, DRAWING SH670-31401 REV A. COMPLIED WITH ST 51-900-1002-SKY. LEAK CHECKS GOOD.