As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER WE CLOSED CABIN DOOR DOOR WOULD NOT LOCK AND THE CABIN DOOR OPEN CAS MSG REMAINED ILLUMINATED. RAN CHECKLIST (AFM 3-510-29). FAULT DID NOT CLEAR. REMOVED CED MONITOR PCB PIN: 7468101-17 SIN: 0216 AND INSTALLED "NEW' CED MONITOR PCB PIN: 7468101-17 SIN: 31469861-3 IAW 680A AMM 24-60-40. OPERATIONAL CHECKS ARE GOOD AT THIS TIME.