What was found
INSDIE THE L/H TUNNEL AREA, AT THE FWD FACE OF THE 377 FLOOR BEAM LBL 24, THE FLOOR BEAM SUPPORT THAT RUNS FWD AND AFT IS BUCKLED AND CRACKED. FOUND DURING THE NLG INSTALL. REMOVED BROKEN STRAP, REPLACED WITH FABRICATED STRAP AND REINSTALLED ON FLOOR BEAM 377 LBL 24 PER SRM 51-40-05, SRM 51-20-01, FAB. ON TRAVELER # T25/1810965 & SRM 53-10- 51-2R, PART MARK IAW GMM 07-0-1001 (FDX-SRM53-10-51-2R), MAJOR REPAIR.