Narrative:

I left duncan, ok, at xa:40 flying to amarillo, tx, about 200 NM wnw. I had my mode C encoder on at all times while I did not pass through any control areas, I used ft sill and altus AFB codes and passed so of them. I contacted amarillo approach (119.5) about 20 mi southeast of the intended airport, used the transponder code while they directed me to tdw, which is uncontrolled but under the outside 76/48 arsa but outside the inner 76/sfc arsa, generally southwest. I then contacted tdw approach at 122.8 (3648') and landed. At about xb:40 I taxied out to runway 5 since the wind was gusting to 30K from the northeast. I informed everyone listening on 122.8 that I was leaving, then switched my radio to approach 119.5 and tried to call, but got no answer from the ground. I then took off making a turn at approximately 200' to sse and called approach again with no result. I then checked my radio setting and it was ok. After calling again, I realized my radio was out. I then reset my transponder to 1200 since I had left it on the previous code used on landing, the transponder was working. I then checked all radio cbs with no results while trying to stay below the 76/48 arsa, generally about 4700'. Since I was traveling at 150-160 KTS, I decided to continue since I would be out of arsa in 2-3 mins on my present. At one time a flight was noted coming my way ahead and above me, so I stayed below and he passed over me at approximately 500'. After being sure I was out of the arsa, I climbed to 7500' and headed ese leaving my transponder and radios on. As I approached fredrick, ok, I noted my ammeter was fluctuating badly, so let down to 3500' to make a landing, but noted heavy military traffic, so I turned off power and flew to duncan. I probably should have returned to tdw. I also should have known about the 7600 code for 1 min then 7000 to indicate radio failure. Callback conversation with reporter revealed the following information. Think this reporter is a bit confused. States he is using a published aviation organization book which gives the codes he mentions. Analyst counseled regarding the proper codes and hopes the information was understood. No one had contacted reporter and he feels he did not penetrate any airspace.

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Original NASA ASRS Text

Title: SMA HAS RADIO FAILURE, CONTINUES TO DEST.

Narrative: I LEFT DUNCAN, OK, AT XA:40 FLYING TO AMARILLO, TX, ABOUT 200 NM WNW. I HAD MY MODE C ENCODER ON AT ALL TIMES WHILE I DID NOT PASS THROUGH ANY CTL AREAS, I USED FT SILL AND ALTUS AFB CODES AND PASSED SO OF THEM. I CONTACTED AMARILLO APCH (119.5) ABOUT 20 MI SE OF THE INTENDED ARPT, USED THE XPONDER CODE WHILE THEY DIRECTED ME TO TDW, WHICH IS UNCTLED BUT UNDER THE OUTSIDE 76/48 ARSA BUT OUTSIDE THE INNER 76/SFC ARSA, GENERALLY SW. I THEN CONTACTED TDW APCH AT 122.8 (3648') AND LANDED. AT ABOUT XB:40 I TAXIED OUT TO RWY 5 SINCE THE WIND WAS GUSTING TO 30K FROM THE NE. I INFORMED EVERYONE LISTENING ON 122.8 THAT I WAS LEAVING, THEN SWITCHED MY RADIO TO APCH 119.5 AND TRIED TO CALL, BUT GOT NO ANSWER FROM THE GND. I THEN TOOK OFF MAKING A TURN AT APPROX 200' TO SSE AND CALLED APCH AGAIN WITH NO RESULT. I THEN CHKED MY RADIO SETTING AND IT WAS OK. AFTER CALLING AGAIN, I REALIZED MY RADIO WAS OUT. I THEN RESET MY XPONDER TO 1200 SINCE I HAD L IT ON THE PREVIOUS CODE USED ON LNDG, THE XPONDER WAS WORKING. I THEN CHKED ALL RADIO CBS WITH NO RESULTS WHILE TRYING TO STAY BELOW THE 76/48 ARSA, GENERALLY ABOUT 4700'. SINCE I WAS TRAVELING AT 150-160 KTS, I DECIDED TO CONTINUE SINCE I WOULD BE OUT OF ARSA IN 2-3 MINS ON MY PRESENT. AT ONE TIME A FLT WAS NOTED COMING MY WAY AHEAD AND ABOVE ME, SO I STAYED BELOW AND HE PASSED OVER ME AT APPROX 500'. AFTER BEING SURE I WAS OUT OF THE ARSA, I CLBED TO 7500' AND HEADED ESE LEAVING MY XPONDER AND RADIOS ON. AS I APCHED FREDRICK, OK, I NOTED MY AMMETER WAS FLUCTUATING BADLY, SO LET DOWN TO 3500' TO MAKE A LNDG, BUT NOTED HVY MIL TFC, SO I TURNED OFF PWR AND FLEW TO DUNCAN. I PROBABLY SHOULD HAVE RETURNED TO TDW. I ALSO SHOULD HAVE KNOWN ABOUT THE 7600 CODE FOR 1 MIN THEN 7000 TO INDICATE RADIO FAILURE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. THINK THIS RPTR IS A BIT CONFUSED. STATES HE IS USING A PUBLISHED AVIATION ORGANIZATION BOOK WHICH GIVES THE CODES HE MENTIONS. ANALYST COUNSELED REGARDING THE PROPER CODES AND HOPES THE INFO WAS UNDERSTOOD. NO ONE HAD CONTACTED RPTR AND HE FEELS HE DID NOT PENETRATE ANY AIRSPACE.

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.