What was found
STRINGER, STGR 27, IS CORRODED BETWEEN FS 310 TO FS 319, MARKED. C-CHECK RO 1/17/2021. BLENDED CORROSION ON STRINGER 27 AT FS 310-FS 319 "OUT OF LIMITS", REF CRJ700 SRM 53-21-03-101-002-A01. REMOVED AND REPLACED THE STRINGER 27 AT FS 310 - FS 319, REF DRAWING SH670-31630 REV G, SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01. COMPLIED WITH ST 51-900-1002-SKY. LEAK CHECKS GOOD.