As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK FOUND THE LOWER CENTER CARGO COMP FIRE EXTINGUISHING LINE JOINT IS OPEN AND SEAL RING IS MISSING AT STA1441. N/R 66723. REINSTALL THE LINE JOINT WITH SEAL RING AND TEST THE DEPLOYMENT LINES REF DC10 AMM 26-22-03.201 REV 81.