Narrative:

Captain was PF. Night VMC. Cleared for the visual runway 27R by approach. Changed to tower frequency. Approximately over speez OM, tower called to check our altitude. I saw that we were at just under 1300 ft MSL. I later checked the phl class B chart, and saw that we may have been under the floor of the airspace. Actions: stay on GS.

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Original NASA ASRS Text

Title: AN A319 CREW ON A VISUAL TO PHL, DSNDED BELOW THE FLOOR OF CLASS B AIRSPACE.

Narrative: CAPT WAS PF. NIGHT VMC. CLRED FOR THE VISUAL RWY 27R BY APCH. CHANGED TO TWR FREQ. APPROX OVER SPEEZ OM, TWR CALLED TO CHK OUR ALT. I SAW THAT WE WERE AT JUST UNDER 1300 FT MSL. I LATER CHKED THE PHL CLASS B CHART, AND SAW THAT WE MAY HAVE BEEN UNDER THE FLOOR OF THE AIRSPACE. ACTIONS: STAY ON GS.

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.