As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR SUPPORT AT STA 277 TO FLIGHT DECK FLOOR, BL 12L HAS SCRIBE LINE ON TOP SURFACE. ACFT GROUNDED. R & R 141A5670Y12 FLOOR SUPPORT TEE AT BS 277 LBL12 IAW SRM 51-40-02 AND DWG 141A5600, REV N. REMOVED AND REINSTALLED PULLEY BRACKETS ADJACENT TO FLOOR SUPPORT TEE TO FOM IAW AMM 20-10-09, REMOVED DOT.