What was found
(CAN) DURING THE INSTALLATION OF THE ADVISORY/PAX WARNING LIGHT PANEL IT WAS DISCOVERED BY MAINTENANCE THAT THERE WERE CHAFED WIRES CAUSING THE CB TO RELEASE. CONNECTOR 9811-P166 (CONNECTOR TO ADVISORY LIGHT PANEL) WIRES AT PIN G AND H WERE CHAFED AND ARCING TO AIRFRAME. WIRES WERE SPLICED AND RE-TERMINATED AT THE CONNECTOR. THE SYSTEM WAS TESTED SERVICEABLE AND THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE.