Narrative:

I was working lce at phl airport and cleared air carrier X to land runway 35 at XA30Z. At XA34Z the amass alarm went off for the runway 35 arrival to go around. Air carrier X was already going around. An aircraft had crossed the runway without permission.

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Original NASA ASRS Text

Title: PHL CTLR DESCRIBED GAR WHEN AMASS ALERTED AND FLT CREW EXECUTED GAR DUE TO PLT DEV; AS ACFT CROSSED RWY 35 WITHOUT CLRNC.

Narrative: I WAS WORKING LCE AT PHL ARPT AND CLRED ACR X TO LAND RWY 35 AT XA30Z. AT XA34Z THE AMASS ALARM WENT OFF FOR THE RWY 35 ARR TO GO AROUND. ACR X WAS ALREADY GOING AROUND. AN ACFT HAD CROSSED THE RWY WITHOUT PERMISSION.

Data retrieved from NASA's ASRS site as of January 2009 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.