What was found
FLOOR SUPPORT BEAM HAS SPOT OF CORROSION IN FRONT TO R2 DOOR STA 986.5. / REMOVED CORROSION AT FLOOR SUPPORT BEAM IN FRONT TO R2 DOOR STA 986.5 RBL45 IAW B737-700 SRM 51-10-02-0G-0. MATERIAL REMAINING 0.082 FOUND OUT OF LIMITS IAW B737-700 SRM 53-70-51-1A-1 FIG. 103 A-A. FINAL TRIM OUT OF UPPER FLANGE AT FLOOR BEAM STA. 986.5 FROM LBL 7.90; TO RBL 68 PER REF. 737 SRM 53-70-51-2R-4; REMOVED INTERCOSTAL FOR ACCESS TO REPAIR FLOOR BEAM BETWEEN STA 986.5 AND STA 1006 RBL 7.5' IAW B737-700 SRM 51-40-02-0G-0. INSTALLED RIVET DOUBLE FLUSH TO PLUG INITIAL TOOLING HOLE; PER REF 737 SRM 53-70-51-2R-4 PERFORMED COUNTERSINK INSP ON ALL EXISTING COUNTERSUNK HOLES IAW B737 NDT P6 53-30-00 PROC.3; NO CRACKS ACCOMPLISHED FLAP PEEN ON THE CUT EDGE PER REF. SOPM 20-10-03; PERFORMED ROUGHNESS SURFACE OF 63 MICRO FINISH; PER REF 737 SRM 51-20-13-0G-0. LOCATED AND DRILLED NEW T CHORD SECTION FROM LBL 7.93 TO RBL 68 PER REF 737-700 SRM 51-40-05-0G-0