Narrative:

On a flight from lbe to fdk, about 15 mi out of fredrick, I noticed a jet crossing in front of me 500-700 ft above and 1-1 1/2 mi out. At the time, I thought the jet was landing at mrb at my 5 O'clock position. As I started my descent, I noticed a jet off my left side rocking his wings. I assumed it was the same jet. I immediately switched 121.5 from my #2 radio to my #1 radio, but I heard nothing. The jet broke off to his left in a climb. After contacting frederick unicom, I was advised to check in at the front desk at the FBO after landing. I was given a phone number to contact ATC. ATC asked if I was aware of P-40, and I advised him I was indeed aware of it. I asked is this what this phone call was about. He said yes, that I had touched the south border of P-40. I asked him if he had the correct aircraft for I had downloaded my flight onto my handheld GPS and it had shown me not being in P-40. I told him I was deeply sorry and apparently my GPS map was wrong. I relied too much on my GPS and now realize I should have taken a wider route around P-40 using my VOR and land markings.

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Original NASA ASRS Text

Title: A PA39 PLT IS QUESTIONED ABOUT HIS BRUSH WITH THE PA40 AREA AFTER ARR AND AN APPARENT INTERCEPT WHILE ENRTE TO FDK.

Narrative: ON A FLT FROM LBE TO FDK, ABOUT 15 MI OUT OF FREDRICK, I NOTICED A JET XING IN FRONT OF ME 500-700 FT ABOVE AND 1-1 1/2 MI OUT. AT THE TIME, I THOUGHT THE JET WAS LNDG AT MRB AT MY 5 O'CLOCK POS. AS I STARTED MY DSCNT, I NOTICED A JET OFF MY L SIDE ROCKING HIS WINGS. I ASSUMED IT WAS THE SAME JET. I IMMEDIATELY SWITCHED 121.5 FROM MY #2 RADIO TO MY #1 RADIO, BUT I HEARD NOTHING. THE JET BROKE OFF TO HIS L IN A CLB. AFTER CONTACTING FREDERICK UNICOM, I WAS ADVISED TO CHK IN AT THE FRONT DESK AT THE FBO AFTER LNDG. I WAS GIVEN A PHONE NUMBER TO CONTACT ATC. ATC ASKED IF I WAS AWARE OF P-40, AND I ADVISED HIM I WAS INDEED AWARE OF IT. I ASKED IS THIS WHAT THIS PHONE CALL WAS ABOUT. HE SAID YES, THAT I HAD TOUCHED THE S BORDER OF P-40. I ASKED HIM IF HE HAD THE CORRECT ACFT FOR I HAD DOWNLOADED MY FLT ONTO MY HANDHELD GPS AND IT HAD SHOWN ME NOT BEING IN P-40. I TOLD HIM I WAS DEEPLY SORRY AND APPARENTLY MY GPS MAP WAS WRONG. I RELIED TOO MUCH ON MY GPS AND NOW REALIZE I SHOULD HAVE TAKEN A WIDER RTE AROUND P-40 USING MY VOR AND LAND MARKINGS.

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.