As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE AIRCRAFT WAS UNABLE TO ACCEPT EXTERNAL POWER. EXTERNAL POWER QUALITY MONITOR CARD WAS REPLACED BUT NOTHING CHANGE, THE PROBLEM WAS STILL THERE. DURING VISUAL INSPECTION OF THE ACPC, THEY FOUND A OVERHEATED POWER WIRE ON THE BOTTOM SECTION OF THE ACPC.(EXT POWER B AT THE CURRENT SENSOR (C16) CONNECTION).