Narrative:

An SF34 was on short final to runway 27. Our new asd-X issued an alert to send the runway 27 traffic around based on vehicle traffic that was on a taxi way approaching the hold line at the approach end; but still north of the hold line. A crj was on about a mile final to runway 18R and a CRJ2 was on about a 4 1/2 to 5 mile final to runway 18R. This was determined to be a false alert by asd-X but we're still using the equipment. Our procedures; (including crda); do not account for a missed approach or if a go around occurs off of runway 27 and there's traffic on runway 18L/right; there's potential for a problem. Controllers have been told that we don't protect for go arounds; but this is a potentially dangerous situation. This is the third instance of a false alert from asd-X resulting in a go around in the last 2 days. Stop running simultaneously to runways 18 and 27.

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Original NASA ASRS Text

Title: MEM Controller described an apparent false ASDE-X alarm resulting in a go around for Runway 27 landing traffic; traffic was also on final for Runway 18R; the reporter expressing concern regarding the simultaneous Runway 18 and 27 operations.

Narrative: An SF34 was on short final to Runway 27. Our new ASD-X issued an alert to send the Runway 27 traffic around based on vehicle traffic that was on a taxi way approaching the hold line at the approach end; but still north of the hold line. A CRJ was on about a mile final to Runway 18R and a CRJ2 was on about a 4 1/2 to 5 mile final to Runway 18R. This was determined to be a false alert by ASD-X but we're still using the equipment. Our procedures; (including CRDA); do NOT account for a missed approach or if a go around occurs off of Runway 27 and there's traffic on Runway 18L/R; there's potential for a problem. Controllers have been told that we don't protect for go arounds; but this is a potentially dangerous situation. This is the third instance of a false alert from ASD-X resulting in a go around in the last 2 days. STOP running simultaneously to Runways 18 and 27.

Data retrieved from NASA's ASRS site as of April 2012 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.