Narrative:

At approximately XA20 at den, while talking to den approach at 600 ft MSL, there was extreme congestion on frequency. Our aircraft was given various airspeed restrs in the span of 5 mins. Numerous vectors, airspeed restrs, and altitude changes were given and the PIC (PNF) had to ask for clarification several times on an extremely congested frequency. While on a heading vector that was a left base for runway 17R, we were asked to report traffic to follow, a BAC1-11, in sight. Both myself and the PNF (PIC) thought we had sighted the BAC1-11, reported it to den approach, and we were cleared for a visual approach, 3 mi in trail of the BAC1-11 to runway 17R. At approximately XA30 hours, we both realized we had lost sight of the BAC1-11 (or had never sighted it in the first place), but were unable to inquire on den approach frequency due to the congestion. In the confusion, I flew PST the final approach to runway 17R and wound up perpendicular to an airbus on final approach to runway 16. I received a TCASII RA on the airbus and responded to the descent command. Den approach reported at that time that we had passed the final for runway 17R. I turned to a heading given by den approach and re-established a visual with runway 17R. The confusion with not having traffic to follow in sight, losing sight of runway 17R and not being able to communicate this on the den approach frequency attributed to this incident.

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Original NASA ASRS Text

Title: FO OF A CPR HAWKER 800 LOST SIGHT OF TFC TO FOLLOW DURING A VISUAL APCH RESULTING IN OVERSHOOTING FINAL AND TAKING EVASIVE ACTION TO AVOID AN AIRBUS ON AN ADJACENT RWY APCH.

Narrative: AT APPROX XA20 AT DEN, WHILE TALKING TO DEN APCH AT 600 FT MSL, THERE WAS EXTREME CONGESTION ON FREQ. OUR ACFT WAS GIVEN VARIOUS AIRSPD RESTRS IN THE SPAN OF 5 MINS. NUMEROUS VECTORS, AIRSPD RESTRS, AND ALT CHANGES WERE GIVEN AND THE PIC (PNF) HAD TO ASK FOR CLARIFICATION SEVERAL TIMES ON AN EXTREMELY CONGESTED FREQ. WHILE ON A HDG VECTOR THAT WAS A L BASE FOR RWY 17R, WE WERE ASKED TO RPT TFC TO FOLLOW, A BAC1-11, IN SIGHT. BOTH MYSELF AND THE PNF (PIC) THOUGHT WE HAD SIGHTED THE BAC1-11, RPTED IT TO DEN APCH, AND WE WERE CLRED FOR A VISUAL APCH, 3 MI IN TRAIL OF THE BAC1-11 TO RWY 17R. AT APPROX XA30 HRS, WE BOTH REALIZED WE HAD LOST SIGHT OF THE BAC1-11 (OR HAD NEVER SIGHTED IT IN THE FIRST PLACE), BUT WERE UNABLE TO INQUIRE ON DEN APCH FREQ DUE TO THE CONGESTION. IN THE CONFUSION, I FLEW PST THE FINAL APCH TO RWY 17R AND WOUND UP PERPENDICULAR TO AN AIRBUS ON FINAL APCH TO RWY 16. I RECEIVED A TCASII RA ON THE AIRBUS AND RESPONDED TO THE DSCNT COMMAND. DEN APCH RPTED AT THAT TIME THAT WE HAD PASSED THE FINAL FOR RWY 17R. I TURNED TO A HDG GIVEN BY DEN APCH AND RE-ESTABLISHED A VISUAL WITH RWY 17R. THE CONFUSION WITH NOT HAVING TFC TO FOLLOW IN SIGHT, LOSING SIGHT OF RWY 17R AND NOT BEING ABLE TO COMMUNICATE THIS ON THE DEN APCH FREQ ATTRIBUTED TO THIS INCIDENT.

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.