As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON FINAL THE "RT RECTIFIER OFF" CAUTION LIGHT ILLUMINATED. ONCE ON THE GROUND, THE MAINTENANCE CREW OPENED THE RT RECTIFIER INSPECTION HATCH, BELOW RT COCKPIT DOOR, A STRONG SMELL ALONG WITH A VERY HOT REVERSE CURRENT RELAY WAS FOUND. THE FAILED REVERSE CURRENT RELAY FOUND DURING THE MAINTENANCE INSPECTION, EXPLAINS THE REASON FOR THE RT RECTIFIER OFF, CAUTION LIGHT.