Narrative:

During peak morning traffic, after numerous radar vectors, finally turned onto DME ILS runway 36R 'cleared visual contact tower.' tower 'cleared to land.' at 9.2 DME, tower 'make immediate right turn to 090 degrees.' followed immediately 'disregard.' saab 340 directly below us now leaving runway 36R for runway 36L observed. Turned over to tower too early. Never advised of saab below, tower too busy, abrupt discovery, tower not monitoring traffic properly. Could have landed right on top of saab without knowing of presence. TCASII not in E-120's. Approach needs to monitor traffic join-ups on parallel runway or tower needs final approach monitor on long visuals. Separate approach and tower frequency meant we could not monitor other traffic. Saab crew may have been on wrong runway or not, unknown to us. Crews need to be alert during peak traffic periods for controller overload.

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Original NASA ASRS Text

Title: AN EMBRAER 120 AND SAAB 340 BECAME ESTABLISHED ON FINAL 'VISUAL APCH' FOR THE SAME RWY. TWR INTERVENED.

Narrative: DURING PEAK MORNING TFC, AFTER NUMEROUS RADAR VECTORS, FINALLY TURNED ONTO DME ILS RWY 36R 'CLRED VISUAL CONTACT TWR.' TWR 'CLRED TO LAND.' AT 9.2 DME, TWR 'MAKE IMMEDIATE R TURN TO 090 DEGS.' FOLLOWED IMMEDIATELY 'DISREGARD.' SAAB 340 DIRECTLY BELOW US NOW LEAVING RWY 36R FOR RWY 36L OBSERVED. TURNED OVER TO TWR TOO EARLY. NEVER ADVISED OF SAAB BELOW, TWR TOO BUSY, ABRUPT DISCOVERY, TWR NOT MONITORING TFC PROPERLY. COULD HAVE LANDED RIGHT ON TOP OF SAAB WITHOUT KNOWING OF PRESENCE. TCASII NOT IN E-120'S. APCH NEEDS TO MONITOR TFC JOIN-UPS ON PARALLEL RWY OR TWR NEEDS FINAL APCH MONITOR ON LONG VISUALS. SEPARATE APCH AND TWR FREQ MEANT WE COULD NOT MONITOR OTHER TFC. SAAB CREW MAY HAVE BEEN ON WRONG RWY OR NOT, UNKNOWN TO US. CREWS NEED TO BE ALERT DURING PEAK TFC PERIODS FOR CTLR OVERLOAD.

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.