Narrative:

Did not accurately monitor position and may have entered phx class B airspace at corner of gilbert and cactus roads -- northeast portion of class B airspace. Floor is 3000 ft, I was at 3900 ft. Once I realized it, turned northeast and dove to 2900 ft to be sure I was out of class B airspace. Recommendation -- these streets do not exist on the ground at this location -- difficult to ascertain aircraft position. Perhaps DME arc from pxr VOR would work better.

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Original NASA ASRS Text

Title: C172 PLT HAD INCURSION OF PHX CLASS B AIRSPACE.

Narrative: DID NOT ACCURATELY MONITOR POSITION AND MAY HAVE ENTERED PHX CLASS B AIRSPACE AT CORNER OF GILBERT AND CACTUS ROADS -- NE PORTION OF CLASS B AIRSPACE. FLOOR IS 3000 FT, I WAS AT 3900 FT. ONCE I REALIZED IT, TURNED NE AND DOVE TO 2900 FT TO BE SURE I WAS OUT OF CLASS B AIRSPACE. RECOMMENDATION -- THESE STREETS DO NOT EXIST ON THE GND AT THIS LOCATION -- DIFFICULT TO ASCERTAIN ACFT POSITION. PERHAPS DME ARC FROM PXR VOR WOULD WORK BETTER.

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.