What was found
FLOOR BEAM AT LBL9 HAS MULTIPLE SPOTS OF CORROSION FROM F.S. 1000.00 TO F.S. 1098.00. - REMOVED VAPOR BARRIER ATTACHED TO FLOOR BEAM AT LBL9 FROM FS 1000 TO FS 1098 FOR ACCESS TO CORROSION. INSTALLED 12EA NEW NUTPLATES IAW CRJ 900 SRM 51-42-15-001-001-A01. PERFORMED UT THICKNESS MEASUREMENTS OF REWORKED AREAS IAW CRJ 900 NDTM PART 1, 51-20-004-270-A01. FOUND LOWEST REMAINING THICKNESS TO BE .041 OR GREATER. ENGINEERING NOT REQ. REPAIRED IAW CRJ900 SRM 53-00-41-201-001-A03. REMOVED CORROSION AT LBL 9 FROM FS 1000.00 TO FS 1098.00 IAW CRJ 900 SRM 51-21-06-001-001-A01. FABRICATED, LOCATED AND DRILLED FLOOR BEAM SECTION FROM FS 1005.5-1064 IAW BOMBARDIER REO 670-53-00-029, REV.A 8/31/10, FIG. 13. PERFORMED EDDY CURRENT INSPECTION OF CUTLINE EDGES IAW BOMBARDIER REO 670-53-00-020, REV.A DATED 8/31/10, STEP 3. NO INDICATIONS NOTED AT THIS TIME. LOCATED SPLICES AND COUNTERSUNK NUTPLATE RIVET HOLES IAW CRJ 900 SRM 53-00-41-201-001-A03 AND REO 670-53-00-029. PAINTED FLOOR BEAM LBL 9 SECTOR IAW CRJ 900 SRM 51-25-00-001-001-A01. INSTALLED FLOOR BEAM, SPLICES AND REPAIR PARTS IAW CRJ 900 SRM 53-60-41-201-001-A03.