As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK A .5 INCH CRACK WAS FOUND IN TIE STRAP BELOW CABIN FLOOR IN E&E COMPARTMENT BS 344, LBL 45. MAINTENANCE STOP DRILLED CRACK IN TIE STRAP BS 344, LBL 45; FABRICATED A REPAIR PLATE; INSTALLED REPAIR PART IAW B737-300 SRM 53-10-51 PG 1 & 219, FIG 204.