As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPARTMENT FLOOR SUPPORT 'Z' CHANNEL TO FRAME MISSING 1/4' ATTACH BOLT B.S. 727+5 R.BL. 21'(51-001) ; / INSTALLED BOLT AT STA. 727 PLUS 5 RBL 21 ON FLOOR SUPPORT Z CHANNEL PER REF. B 737 SRM 51-40-02-0G AND DRAWING # 146A0061; VERIFIED