Narrative:

I departure ptk at XA25 local on the part 91 leg of a part 135 charter freight flight. I was bound for I66. I should have maintained 2800 MSL until 20NM south of dxo VOR. Instead, I climbed to 4500 ft MSL. The GPS airspace alert informed me I was in class B at which time I initiated an immediate descent and exited the airspace. I called detroit approach, confessed my error, and they assured me no report would be filed. I suppose all the IFR flying I do makes me lazy in terms of controled airspace requirements. I was more concerned with unknown tfr's en route to my destination.

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Original NASA ASRS Text

Title: CESSNA 310 PLT INADVERTENTLY CLIMBS INTO CLASS B AIRSPACE WHILE TRANSITIONS THE ACFT UNDER CLASS B AIRSPACE. RPTR NOTICED HIS MISTAKE VIA HIS GPS MAP AND DESCENDED OUT AT ONCE.

Narrative: I DEP PTK AT XA25 LCL ON THE PART 91 LEG OF A PART 135 CHARTER FREIGHT FLT. I WAS BOUND FOR I66. I SHOULD HAVE MAINTAINED 2800 MSL UNTIL 20NM S OF DXO VOR. INSTEAD, I CLIMBED TO 4500 FT MSL. THE GPS AIRSPACE ALERT INFORMED ME I WAS IN CLASS B AT WHICH TIME I INITIATED AN IMMEDIATE DESCENT AND EXITED THE AIRSPACE. I CALLED DETROIT APCH, CONFESSED MY ERROR, AND THEY ASSURED ME NO REPORT WOULD BE FILED. I SUPPOSE ALL THE IFR FLYING I DO MAKES ME LAZY IN TERMS OF CTLED AIRSPACE REQUIREMENTS. I WAS MORE CONCERNED WITH UNKNOWN TFR'S ENRTE TO MY DEST.

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.