What was found
STRINGER, STGR 26L BETWEEN FS 333 TO FS 349, HAS CORROSION, MARKED. C-CHECK RO 12/26/2020. REMOVED AND REPLACED STRINGER 26L BETWEEN FS 333 TO FS 349, REF CRJ900 SRM AND DWG. COMPLIED WITH SKYWEST TASK CARD. COMPLETED FORM M-337. SEE CONTINUATON CARD FOR DETAILS. PRESSURE LEAK CHECK GOOD, NO LEAKS NOTED.