Narrative:

On a left base to final at 3000 ft MSL, approach was vectoring us head on to an airplane arriving from the northwest. Simultaneously, as our TCASII warned us of the conflict, the controller pointed out the traffic. As we acquired the traffic visually crossing in front of us and passing off our left, we got an RA to climb. At the same time, the controller told us to follow the aircraft off to our left, now going to 7 O'clock to the east side to land on runway 17L. The traffic ahead (now behind us) was to be landing on runway 17R. By the time we were cleared visual to runway 17L we were midfield (1/2 way between runway 17R and runway 18L) and turned left to parallel a course inbound. As we rolled out, we were lined up for the west side for runway 18L. We continued inbound for approximately 3 mi lined up with runway 18L and the controller never informed us of the wrong approach but merely handed us off to tower. Just prior to our contacting tower, I realized the ILS localizer was off scale left and realized we were now 4 mi out headed for runway 18L. As I turned the aircraft to intercept runway 17L, tower informed us of our position. Landing on runway 17L was uneventful. Bad vector from approach! We were set up, at dallas, again! Supplemental information from acn 256736: we responded to the climb RA. We continued inbound unaware we were on the west side of dfw for approximately 3 mi.

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Original NASA ASRS Text

Title: AN ACR MLG LINED UP ON THE WRONG RWY AT DFW.

Narrative: ON A L BASE TO FINAL AT 3000 FT MSL, APCH WAS VECTORING US HEAD ON TO AN AIRPLANE ARRIVING FROM THE NW. SIMULTANEOUSLY, AS OUR TCASII WARNED US OF THE CONFLICT, THE CTLR POINTED OUT THE TFC. AS WE ACQUIRED THE TFC VISUALLY XING IN FRONT OF US AND PASSING OFF OUR L, WE GOT AN RA TO CLB. AT THE SAME TIME, THE CTLR TOLD US TO FOLLOW THE ACFT OFF TO OUR L, NOW GOING TO 7 O'CLOCK TO THE E SIDE TO LAND ON RWY 17L. THE TFC AHEAD (NOW BEHIND US) WAS TO BE LNDG ON RWY 17R. BY THE TIME WE WERE CLRED VISUAL TO RWY 17L WE WERE MIDFIELD (1/2 WAY BTWN RWY 17R AND RWY 18L) AND TURNED L TO PARALLEL A COURSE INBOUND. AS WE ROLLED OUT, WE WERE LINED UP FOR THE W SIDE FOR RWY 18L. WE CONTINUED INBOUND FOR APPROX 3 MI LINED UP WITH RWY 18L AND THE CTLR NEVER INFORMED US OF THE WRONG APCH BUT MERELY HANDED US OFF TO TWR. JUST PRIOR TO OUR CONTACTING TWR, I REALIZED THE ILS LOC WAS OFF SCALE L AND REALIZED WE WERE NOW 4 MI OUT HEADED FOR RWY 18L. AS I TURNED THE ACFT TO INTERCEPT RWY 17L, TWR INFORMED US OF OUR POS. LNDG ON RWY 17L WAS UNEVENTFUL. BAD VECTOR FROM APCH! WE WERE SET UP, AT DALLAS, AGAIN! SUPPLEMENTAL INFORMATION FROM ACN 256736: WE RESPONDED TO THE CLB RA. WE CONTINUED INBOUND UNAWARE WE WERE ON THE W SIDE OF DFW FOR APPROX 3 MI.

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.