What was found
CORROSION FOUND ON FS280 CROSSBEAM BETWEEN LBL 9 AND RBL 9. REMOVED CORROSION FROM UPPER FLANGE OF LH FS280 CROSSBEAM P/N CC670-34094-1 FROM BL 0 TO LBL 9 PER CRJ 900 SRM 51-21-06-001-001-A01. BLEND IS NOT WITHIN THE ALLOWABLE DAMAGE LIMITS SPECIFIED BY CRJ 900 SRM 53-00-00-101-001-A01 DUE TO 100% MATERIAL LOSS AT LBL 4.5 BLEND LOCATION. LOCATED AND DRILLED NEW FS 280.00 CROSSBEAM P/N:CC670-34094JP-1S IAW CRJ900 SRM 51-40-11-001-001-A01. INSTALLED NEW SERVICEABLE FLOOR BEAM P/N CC670-34094JP-1S AT FS280 LH IAW CRJ900 SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01, AND SRM 51-42-22-001-001-A01.