ACFT EQUIP PROB. ELECTRICAL FAILURE WITH LOSS OF RADIOS. RPTR PLT LANDED AT OUTLYING UNCTLED ARPT. CTLING TWR ALMOST INITIATED RESCUE OPS.

Narrative

WHILE ON A PRACTICE ILS APCH UNDER VFR CONDITIONS; I EXPERIENCED A COMPLETE ELECTRICAL FAILURE. I WAS CLRED DIRECT TO THE WINDSOR NDB AND TOLD TO INFORM THE TWR WHEN I WAS BEACON OUTBOUND. THE LOC BEGAN TO COME IN AND AS I BEGAN TO MAKE MY OUTBOUND TURN FOR THE FULL APCH; I NOTICED THE NDB SIGNAL BEGAN TO 'BREAK UP' AND THE NEEDLE STOPPED RESPONDING. I CALLED WINDSOR TWR TO INFORM THEM OF MY SIT AND TO TELL THEM I WAS GOING TO CONTINUE THE APCH. I ASSUMED THE PROB WAS IN MY RECEIVER OR WITH THE NDB. HAD I NOT BECOME FIXATED ON THE PROB; I WOULD HAVE REALIZED SOONER THAT THE AMMETER NEEDLE WAS MOVING ERRATICALLY; INDICATING THAT AN ELECTRICAL FAILURE WAS IMMINENT. THE RADIOS IMMEDIATELY BEGAN TO FAIL; SO I TRIED TO MAKE A FINAL XMISSION TO WINDSOR TWR IN THE HOPES OF LETTING THEM KNOW MY SIT. I ALSO SQUAWKED 7600. I RECEIVED NO RESPONSE AND SOON AFTER LOST ALL ELECTRICAL PWR. I WAS ALREADY OUTSIDE OF THE WINDSOR CTL ZONE; SO WITH NO ELECTRICAL PWR; I ELECTED TO REMAIN CLR OF THEIR AIRSPACE AND TO CONTINUE TO THE NEAREST UNCTLED ARPT (2GS) 10 MI TO THE S. THE FLT TERMINATED WITHOUT FURTHER INCIDENT. I IMMEDIATELY TELEPHONED THE WINDSOR TWR TO INFORM THEM I HAD LANDED SAFELY. THIS WAS FORTUNATE BECAUSE THEY HAD NOT RECEIVED MY 7600 AND WERE BEGINNING RESCUE OP. I FELT MY CHOICE TO REMAIN CLR OF WINDSOR WAS THE CORRECT ONE. HOWEVER; IN THE FUTURE; I WILL ENDEAVOR TO REMAIN MORE DILIGENT IN MONITORING THE AIRPLANE'S SYS. I WILL ALSO TRY NOT TO JUMP TO CONCLUSIONS CONCERNING THE CAUSE OF SYS FAILURE.