Narrative:

On tower frequency, aircraft #1 was on final runway 18R on visual approach. Aircraft #2 was on a vector heading west for runway 18L, not seeing the airport. After numerous xmissions to other aircraft, I switched aircraft #2 to the tower, then noticed him going through localizer. I was able to catch him before leaving frequency. Tower climbed aircraft #1.

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Original NASA ASRS Text

Title: HDG TRACK DEV BY A CRJ ACFT, OVERSHOT CVG RWY 18L FINAL, CAUSING A B727 ON RWY 18R TO GO AROUND.

Narrative: ON TWR FREQ, ACFT #1 WAS ON FINAL RWY 18R ON VISUAL APCH. ACFT #2 WAS ON A VECTOR HDG W FOR RWY 18L, NOT SEEING THE ARPT. AFTER NUMEROUS XMISSIONS TO OTHER ACFT, I SWITCHED ACFT #2 TO THE TWR, THEN NOTICED HIM GOING THROUGH LOC. I WAS ABLE TO CATCH HIM BEFORE LEAVING FREQ. TWR CLBED ACFT #1.

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.