Narrative:

Approximately 30-35 mi from runway 25L at las, we were cleared for visual approach to runway 25L (we were on runway 25L localizer) while maintenance visual contact with company aircraft ahead of us, also to maintain 210 KTS or better until 5 or 10 mi final (can't remember which) as per ATC instructions. As PF, I was already at 250 KIAS and maintaining this until approximately 10 mi from runway. I then began slowing as we were beginning to close with company aircraft ahead of us. I believe we were at approximately 6-7 mi from runway. Approach control handed us off to las tower. We contacted tower and we were cleared to land on runway 19L. This is where the confusion started, as we were too close to runway 25L threshold to really initiate a circle to land maneuver and at the same time I spooled up the engines to maintain present airspeed, altitude and confign in anticipation of a canceled landing clearance on runway 25L, or a go around, etc. While rapidly sorting this out with the tower, we closed with preceding traffic because of our stabilized airspeed (approximately 160 KTS) until I decided to go around because of impending traffic conflict. In the meantime we determined we had inadvertently contacted las tower on 118.75 which was the frequency for the runway 19L/right complex instead of the correct frequency of 119.9 for runway 25L. I don't know why the tower responded with our correct call sign and cleared us to land on runway 19L -- there must have been some confusion on his part as well. After determining our position (close final for runway 25L) he sent us back to the correct frequency 119.0 (that's when we realized our error). Upon switching to 119.9 the tower was already issuing a go around, which we were in the process of completing. We ultimately climbed to 5000 ft MSL runway heading and were vectored to a right downwind to runway 19R and cleared to land runway 19R. This we completed without further incident.

Related reports:

Google
 

Original NASA ASRS Text

Title: AN AIRBUS A320 FLC EXECUTED A MISSED APCH AT LAS WHEN THE LNDG CLRNC WAS FOR ANOTHER RWY.

Narrative: APPROX 30-35 MI FROM RWY 25L AT LAS, WE WERE CLRED FOR VISUAL APCH TO RWY 25L (WE WERE ON RWY 25L LOC) WHILE MAINT VISUAL CONTACT WITH COMPANY ACFT AHEAD OF US, ALSO TO MAINTAIN 210 KTS OR BETTER UNTIL 5 OR 10 MI FINAL (CAN'T REMEMBER WHICH) AS PER ATC INSTRUCTIONS. AS PF, I WAS ALREADY AT 250 KIAS AND MAINTAINING THIS UNTIL APPROX 10 MI FROM RWY. I THEN BEGAN SLOWING AS WE WERE BEGINNING TO CLOSE WITH COMPANY ACFT AHEAD OF US. I BELIEVE WE WERE AT APPROX 6-7 MI FROM RWY. APCH CTL HANDED US OFF TO LAS TWR. WE CONTACTED TWR AND WE WERE CLRED TO LAND ON RWY 19L. THIS IS WHERE THE CONFUSION STARTED, AS WE WERE TOO CLOSE TO RWY 25L THRESHOLD TO REALLY INITIATE A CIRCLE TO LAND MANEUVER AND AT THE SAME TIME I SPOOLED UP THE ENGS TO MAINTAIN PRESENT AIRSPD, ALT AND CONFIGN IN ANTICIPATION OF A CANCELED LNDG CLRNC ON RWY 25L, OR A GAR, ETC. WHILE RAPIDLY SORTING THIS OUT WITH THE TWR, WE CLOSED WITH PRECEDING TFC BECAUSE OF OUR STABILIZED AIRSPD (APPROX 160 KTS) UNTIL I DECIDED TO GO AROUND BECAUSE OF IMPENDING TFC CONFLICT. IN THE MEANTIME WE DETERMINED WE HAD INADVERTENTLY CONTACTED LAS TWR ON 118.75 WHICH WAS THE FREQ FOR THE RWY 19L/R COMPLEX INSTEAD OF THE CORRECT FREQ OF 119.9 FOR RWY 25L. I DON'T KNOW WHY THE TWR RESPONDED WITH OUR CORRECT CALL SIGN AND CLRED US TO LAND ON RWY 19L -- THERE MUST HAVE BEEN SOME CONFUSION ON HIS PART AS WELL. AFTER DETERMINING OUR POS (CLOSE FINAL FOR RWY 25L) HE SENT US BACK TO THE CORRECT FREQ 119.0 (THAT'S WHEN WE REALIZED OUR ERROR). UPON SWITCHING TO 119.9 THE TWR WAS ALREADY ISSUING A GAR, WHICH WE WERE IN THE PROCESS OF COMPLETING. WE ULTIMATELY CLBED TO 5000 FT MSL RWY HDG AND WERE VECTORED TO A R DOWNWIND TO RWY 19R AND CLRED TO LAND RWY 19R. THIS WE COMPLETED WITHOUT FURTHER 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.