SMA EXPERIENCES ELECTRICAL FAILURE. PLT MAKES PRECAUTIONARY LNDG WITH NO TWR CONTACT.

Narrative

WHILE ENRTE FROM TULSA TO EVANSVILLE; IN; IN VFR CONDITIONS IN OUR SMA; I EXPERIENCED A FULL ELECTRICAL FAILURE DUE TO; I LATER FOUND OUT; A BREAK IN THE ALTERNATOR FIELD WIRE. BY THE TIME I BECAME AWARE OF THE PROB; I HAD LOST COM AND AUTOPLT AND XPONDER. THROUGH PWR CONSERVATION I MAINTAINED VOR NAV FOR ANOTHER 45 MINS; BUT THAT EVENTUALLY WENT DEAD AS WELL. I SELECTED PADUCAH; KY; BARKLEY REGIONAL ARPT AS OFFERING THE BEST OPTIONS FOR A SAFE LNDG -- LOW TFC LEVELS AND REPAIR FACILITY. ALTHOUGH LCL WX CONDITIONS WERE GOOD (SCATTERED CLOUDS; VISIBILITY 8-10 MI) I WAS VERY CONCERNED ABOUT THE POSSIBILITY OF CONVECTIVE ACTIVITY (MISSOURI HAD LEVEL 5 TSTMS) AND WAS EAGER TO GET THE FLT ON THE GND. I ARRIVED OVER PAH AT ABOUT 6000 FT AND PROCEEDED TO DSND IN A TFC PATTERN FOR RWY 22; WHICH I DETERMINED WAS THE LIKELY ACTIVE RWY. I MANEUVERED VIGOROUSLY WITH WING WAGS IN AN ATTEMPT TO DRAW ATTN TO MYSELF. IN ALL; I MADE 4 CIRCUITS OF THE PATTERN AND I DSNDED TO PATTERN ALT OF 1200 FT MSL. THROUGHOUT; I LOOKED FOR LIGHT SIGNALS FROM THE TWR AND SAW NONE. I ESTABLISHED AN EXTENDED DOWNWIND WHILE I MANUALLY EXTENDED THE GEAR (HARD WORK). I TURNED FINAL. STILL NOT SEEING ANY LIGHT SIGNALS (RED OR GREEN); I CONCLUDED THE TWR WAS UNMANNED ON THE WKENDS. I MADE A NO FLAPS APCH AND LANDED WITHOUT INCIDENT. THROUGHOUT; I SAW NO OTHER TFC. ALTHOUGH IT APPEARS THAT I STRETCHED THE REGS BY LNDG WITHOUT A LIGHT SIGNAL; I CONSIDERED MYSELF IN AN EMER SIT. I TOOK EVERY MEASURE TO BE SEEN; TO MAKE MY INTENTIONS CLR; TO AVOID CONFLICTING TFC. I SINCERELY BELIEVED THE TWR TO HAVE BEEN UNMANNED OR AT LEAST INATTENTIVE.