Narrative:

I am a civilian that landed at a military field. I was flying a from austin, tx to alice, tx. Approximately 30 mi out I noticed a discharge on my alternator. I recycled bat and alternator switch and alternator bus switch. It corrected for approximately 2 mins. It then tripped again. I continued to recycle with no correction, so I then began to shut off systems. I kept 1 communication and 1 navigation and transponder. I was RNAV-ing off of corpus christy, so I lost DME. I continued descent and saw an airport. The airport had 13-31, 17-35 the same as alice. It was orange grove NAS, 9 mi north. It was a rookie move. I should have maintained my navigation in the crisis. The navy personnel were wonderful and very understanding. They commented that this happens often, so there must be a problem. I think the similarities in runways direction and #south help the problem. I have no excuses. It was a rookie move.

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Original NASA ASRS Text

Title: UNAUTH LNDG AFTER MAKING WRONG ARPT APCH WHEN PLT GETS CONFUSED OVER SAME RWY IDENTIFICATION.

Narrative: I AM A CIVILIAN THAT LANDED AT A MIL FIELD. I WAS FLYING A FROM AUSTIN, TX TO ALICE, TX. APPROX 30 MI OUT I NOTICED A DISCHARGE ON MY ALTERNATOR. I RECYCLED BAT AND ALTERNATOR SWITCH AND ALTERNATOR BUS SWITCH. IT CORRECTED FOR APPROX 2 MINS. IT THEN TRIPPED AGAIN. I CONTINUED TO RECYCLE WITH NO CORRECTION, SO I THEN BEGAN TO SHUT OFF SYSTEMS. I KEPT 1 COM AND 1 NAV AND XPONDER. I WAS RNAV-ING OFF OF CORPUS CHRISTY, SO I LOST DME. I CONTINUED DSNT AND SAW AN ARPT. THE ARPT HAD 13-31, 17-35 THE SAME AS ALICE. IT WAS ORANGE GROVE NAS, 9 MI N. IT WAS A ROOKIE MOVE. I SHOULD HAVE MAINTAINED MY NAV IN THE CRISIS. THE NAVY PERSONNEL WERE WONDERFUL AND VERY UNDERSTANDING. THEY COMMENTED THAT THIS HAPPENS OFTEN, SO THERE MUST BE A PROB. I THINK THE SIMILARITIES IN RWYS DIRECTION AND #S HELP THE PROB. I HAVE NO EXCUSES. IT WAS A ROOKIE MOVE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.