What was found
WEAR AND CORROSION ON FLOOR SEAT RAILS BTW FS 349 TO FS 364, BTW FS 661+46 TO 661+74, BTW FS 720 TO FS 744 & BTW FS 847 TO FS 977 AT RBL 9 PASSENGER CABIN. FLOOR SEAT RAILS BTW FS 349 TO FS 364, BTW FS 661+46 TO 661+74, BTW FS 720 TO FS 744 & BTW FS 847 TO FS 977 AT RBL 9 PASSENGER WERE EVALUATED OUT OF LIMITS PER CRJ-900 SRM 53-21-49-101-001-A01, SRM 53-31-49-101-001-A02, SRM 53-41-49-101-001-A02 AND SRM 53-51-49-101-001-A02 AND REPLACED PER CRJ900 AMM 53-00-49.