Narrative:

After landing on runway 20L at pdk airport, tower advised me to 'turn right next taxiway, cross runway 20R, contact ground on the other side.' I turned onto the taxiway referred to, and was anticipating crossing a runway (20R). I came to an intersecting taxiway and gave way to a taxiing aircraft on that taxiway. I also saw that my taxiway did not continue straight ahead, but rather angled to the left, and slightly off of a straight ahead path. I saw a runway in the distance which I assumed to be runway 20R (later found to be runway 24), and so I thought I could turn on to the intersecting taxiway and contact ground at that point, since the FBO I was going to was on my immediate right (and not on the other side of the runway that I mistook for runway 20R). When I contacted ground, they informed me of my mistake. Later, with ground control on the phone and the airport diagram in front of me, I could see that I had already 'crossed' runway 20R by the time I had reached the intersecting taxiway that I then turned onto, but did not see runway 20R because I was at the very end of runway 20R and it extended only to my left. The tower's instructions could have been stated more clearly to alert me that I would not be 'crossing' runway 20R on the traditional sense, however if I had the airport diagram in front of me (instead of folded up in my flight bag!) it would have been obvious to me before I had gone too far. When in doubt, I should have asked for directions.

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Original NASA ASRS Text

Title: C210 PLT HAD A RWY INCURSION AFTER LNDG AT PDK.

Narrative: AFTER LNDG ON RWY 20L AT PDK ARPT, TWR ADVISED ME TO 'TURN R NEXT TXWY, CROSS RWY 20R, CONTACT GND ON THE OTHER SIDE.' I TURNED ONTO THE TXWY REFERRED TO, AND WAS ANTICIPATING XING A RWY (20R). I CAME TO AN INTERSECTING TXWY AND GAVE WAY TO A TAXIING ACFT ON THAT TXWY. I ALSO SAW THAT MY TXWY DID NOT CONTINUE STRAIGHT AHEAD, BUT RATHER ANGLED TO THE L, AND SLIGHTLY OFF OF A STRAIGHT AHEAD PATH. I SAW A RWY IN THE DISTANCE WHICH I ASSUMED TO BE RWY 20R (LATER FOUND TO BE RWY 24), AND SO I THOUGHT I COULD TURN ON TO THE INTERSECTING TXWY AND CONTACT GND AT THAT POINT, SINCE THE FBO I WAS GOING TO WAS ON MY IMMEDIATE R (AND NOT ON THE OTHER SIDE OF THE RWY THAT I MISTOOK FOR RWY 20R). WHEN I CONTACTED GND, THEY INFORMED ME OF MY MISTAKE. LATER, WITH GND CTL ON THE PHONE AND THE ARPT DIAGRAM IN FRONT OF ME, I COULD SEE THAT I HAD ALREADY 'CROSSED' RWY 20R BY THE TIME I HAD REACHED THE INTERSECTING TXWY THAT I THEN TURNED ONTO, BUT DID NOT SEE RWY 20R BECAUSE I WAS AT THE VERY END OF RWY 20R AND IT EXTENDED ONLY TO MY L. THE TWR'S INSTRUCTIONS COULD HAVE BEEN STATED MORE CLRLY TO ALERT ME THAT I WOULD NOT BE 'XING' RWY 20R ON THE TRADITIONAL SENSE, HOWEVER IF I HAD THE ARPT DIAGRAM IN FRONT OF ME (INSTEAD OF FOLDED UP IN MY FLT BAG!) IT WOULD HAVE BEEN OBVIOUS TO ME BEFORE I HAD GONE TOO FAR. WHEN IN DOUBT, I SHOULD HAVE ASKED FOR DIRECTIONS.

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.