Narrative:

My aircraft was stabilized on ILS to 28L at pit at approximately 3500 ft MSL. TCASII showed another aircraft which I assumed to be on approach to 28R. This target moved progressively closer to my aircraft until an RA 'climb' was issued. I executed a missed approach. RA screen showed -01 ft and zero range at closest point.

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Original NASA ASRS Text

Title: ACR EXECUTES GAR AT 3500 FT DUE TCASII RA.

Narrative: MY ACFT WAS STABILIZED ON ILS TO 28L AT PIT AT APPROX 3500 FT MSL. TCASII SHOWED ANOTHER ACFT WHICH I ASSUMED TO BE ON APCH TO 28R. THIS TARGET MOVED PROGRESSIVELY CLOSER TO MY ACFT UNTIL AN RA 'CLB' WAS ISSUED. I EXECUTED A MISSED APCH. RA SCREEN SHOWED -01 FT AND ZERO RANGE AT CLOSEST POINT.

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.