What was found
LBL 9 BULKHEAD BEAM, I/B SIDE @ FS 693 HAS A PREVIOUS REPAIR ON TOP FLANGE COMMON TO THE FLOOR BEAM AND FLOORBOARD MOUNTING STRUCTURE. THIS REPAIR WAS DISCOVERED WHILE REMOVING STRUCTURE TO INCORPORATE SB 670SH-53-043 AND WILL REQUIRE A DEVIATION FROM ENGINEERING TO INSTALL TO COMPLY WITH SB REQUIREMENTS. REMOVED AND REPLACED IAW CRJ 900 SRMS 51-40-11-001-001-A01, 51-42-21-001-001-A01, AND 51-42-06-001-001-A01, REFERENCING SB 670SH-53-043 REV C INSTALLATION FIGURE 105 SHEET 5 AND SHEET 7.