As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COURTESY AND ENTRANCE DOOR LIGHTS REPORTED U/S. TROUBLESHOOTING LED TO CONNECTOR P406 LOCATED IN THE AIRCRAFT SIDEWALL FORWARD OF THE ENTRANCE DOOR. FOUND CONNECTOR PINS CORRODED, PRIMARILY PIN 7 THATSUPPLIES 28VDC TO THE CIRCUIT. WIRING REPAIRED AND AIRCRAFT RELEASED.