As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR0669 AND 046, WHILE WORKING NR0553 SEAT TRACK DISCOVERED 740 FLOOR BEAM TO HAVE ELONGATED HOLE AT WL 208 LBL 25. *S/D* REAMED HOLE ON FLOOR BEAM AT BS 740 LBL 25 TO A SIZE OF .4195. INSTALLED FREEZE PLUG WITH SEALANT AND INSTALLED PERMANENT STRAP IAW FEDEX SRM 51-10-7.