What was found
CORROSION ON LH SIDE SEAT RAILS (STGR 15L) AS FOLLOW; (6E/A) FROM FS379 TO FS720, (1E/A) FROM FS744 TO FS761, (1E/A) FROM FS785 TO FS847+5 AND (1E/A) FROM FS847+20 TO FS900 AT PAX CABIN. CORRECTIVE ACTION: SUMMARY: DUE TO EXCESSIVE DAMAGE ON LH SIDE SEAT RAILS (STGR 15L) AS FOLLOW; (6E/A) FROM FS379 TO FS720, (1E/A) FROM FS744 TO FS761, (1E/A) FROM FS785 TO FS847+5 AND (1E/A) FROM FS847+20 TO FS900 AT PAX CABIN. WERE REPLACED PER CRJ-900 SRM 51-10-06-001-001-A01 AND CRJ-900 AMM 53-00-49.