As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) L2 DOOR INDICATED OPEN WHEN CLOSED. MAINTENANCE TROUBLESHOOTING DISCOVERED THAT THE OUTER INSULATION JACKET AND WIRE (W74BB-22-6 RED) WAS BROKEN ADJACENT TO THE SECOND HARNESS CLAMP BELOW THE DOOR HANDLE. THE HARNESS WAS REPLACED AND TESTED SERVICEABLE. THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE.