Narrative:

Captain was flying blue ridge 3 arrival into dfw, I (2ND pilot) was coordinating with company on radio and briefing passenger and flight attendants. At a point approximately 30 mi from blue ridge VOR on the 230 degree radial just prior to making 170 degree turn on the published STAR, TCASII gave a TA at 8 mi, same altitude, approximately 10 O'clock. At this point I was off the radio looking with jumpseat occupant for traffic. Captain turned slightly right of the 230 degree radial (buj) when we all picked up traffic visually at 10-11 O'clock, same altitude. It was in our opinion that if we had made the 170 degree turn as published, there would have been a serious conflict. My concern was that approach control had no acknowledgement of the traffic and we had to deviate from the published STAR. When we told control of the plane he did not confirm an intruder and we ended up over the dfw airport, past the published turn point. All 3 pilots made visual contact with the aircraft in question, and it was our opinion that delaying the turn on the STAR included evasive action to avoid the aircraft.

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Original NASA ASRS Text

Title: ACR ON APCH ON STAR HAS TCASII TA. SIGHT TFC AND DELAY PUBLISHED TURN TO AVOID CONFLICT.

Narrative: CAPT WAS FLYING BLUE RIDGE 3 ARR INTO DFW, I (2ND PLT) WAS COORDINATING WITH COMPANY ON RADIO AND BRIEFING PAX AND FLT ATTENDANTS. AT A POINT APPROX 30 MI FROM BLUE RIDGE VOR ON THE 230 DEG RADIAL JUST PRIOR TO MAKING 170 DEG TURN ON THE PUBLISHED STAR, TCASII GAVE A TA AT 8 MI, SAME ALT, APPROX 10 O'CLOCK. AT THIS POINT I WAS OFF THE RADIO LOOKING WITH JUMPSEAT OCCUPANT FOR TFC. CAPT TURNED SLIGHTLY R OF THE 230 DEG RADIAL (BUJ) WHEN WE ALL PICKED UP TFC VISUALLY AT 10-11 O'CLOCK, SAME ALT. IT WAS IN OUR OPINION THAT IF WE HAD MADE THE 170 DEG TURN AS PUBLISHED, THERE WOULD HAVE BEEN A SERIOUS CONFLICT. MY CONCERN WAS THAT APCH CTL HAD NO ACKNOWLEDGEMENT OF THE TFC AND WE HAD TO DEVIATE FROM THE PUBLISHED STAR. WHEN WE TOLD CTL OF THE PLANE HE DID NOT CONFIRM AN INTRUDER AND WE ENDED UP OVER THE DFW ARPT, PAST THE PUBLISHED TURN POINT. ALL 3 PLTS MADE VISUAL CONTACT WITH THE ACFT IN QUESTION, AND IT WAS OUR OPINION THAT DELAYING THE TURN ON THE STAR INCLUDED EVASIVE ACTION TO AVOID THE ACFT.

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.