Narrative:

Light aircraft was a class B violator who should not have been that close to the airport without at least talking to ATC.

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Original NASA ASRS Text

Title: PHL CTLR EXPERIENCED A321 GAR BECAUSE OF UNKNOWN VFR TFC.

Narrative: LIGHT ACFT WAS A CLASS B VIOLATOR WHO SHOULD NOT HAVE BEEN THAT CLOSE TO THE ARPT WITHOUT AT LEAST TALKING TO ATC.

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.