Narrative:

I was told I entered a tfr that was placed over chicago on jun/wed/03. This was due to a visit from government official. I was aware of the tfr from reading the notice on internet WX service, when I checked my WX and tfr's. Internet WX service I thought has about the best format for checking a pilot's preflight WX, and en route conditions. I understood that there was a 30 mi restr from ord (O'hare). I was told by the agency I talked with that it was 30 mi from the center of downtown chicago. Then another person said from the center of midway airport. My route is outside the 30 mi mode C ring south of chicago's class B airspace. I assumed I was well clear of the tfr. Later I downloaded my track from my GPS to delorme topo. It showed me between 36-39 mi south of ord, 28 mi south of downtown, 24-26 mi south of mdy. As our company check pilot I stress checking tfr's on a daily, flight bases. The government employee that I had to speak with made the comment that this tfr was confusing to him also.

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Original NASA ASRS Text

Title: THE CTR OF A 30 MI RADIUS THAT WAS TO DEFINE A TFR FOR A GOV OFFICIAL VISIT WAS NOT DEFINED SO THAT IT WAS CLR TO BRIEFERS AND PLTS.

Narrative: I WAS TOLD I ENTERED A TFR THAT WAS PLACED OVER CHICAGO ON JUN/WED/03. THIS WAS DUE TO A VISIT FROM GOV OFFICIAL. I WAS AWARE OF THE TFR FROM READING THE NOTICE ON INTERNET WX SVC, WHEN I CHKED MY WX AND TFR'S. INTERNET WX SVC I THOUGHT HAS ABOUT THE BEST FORMAT FOR CHKING A PLT'S PREFLT WX, AND ENRTE CONDITIONS. I UNDERSTOOD THAT THERE WAS A 30 MI RESTR FROM ORD (O'HARE). I WAS TOLD BY THE AGENCY I TALKED WITH THAT IT WAS 30 MI FROM THE CTR OF DOWNTOWN CHICAGO. THEN ANOTHER PERSON SAID FROM THE CTR OF MIDWAY ARPT. MY RTE IS OUTSIDE THE 30 MI MODE C RING S OF CHICAGO'S CLASS B AIRSPACE. I ASSUMED I WAS WELL CLR OF THE TFR. LATER I DOWNLOADED MY TRACK FROM MY GPS TO DELORME TOPO. IT SHOWED ME BTWN 36-39 MI S OF ORD, 28 MI S OF DOWNTOWN, 24-26 MI S OF MDY. AS OUR COMPANY CHK PLT I STRESS CHKING TFR'S ON A DAILY, FLT BASES. THE GOV EMPLOYEE THAT I HAD TO SPEAK WITH MADE THE COMMENT THAT THIS TFR WAS CONFUSING TO HIM ALSO.

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.