Narrative:

I was in cruise flight at FL330 proceeding directly to cnu VOR. At approximately XA05 Z, 100 NM south of cnu and about 30 southwest of tul, the first officer and I observed traffic above us at FL350 and also below us at FL310. As these aircraft approached, we were told to turn left 10 degree another aircraft then appeared on our TCASII at our same altitude of FL330. We were then given another turn 15 degree left. As we made our turn, a fourth aircraft immediately appeared on our TCASII. We were then given a further turn about 40 degree left to a 270 degree heading. We watched the TCASII as the fourth aircraft converged on us. I began a turn back to the north to avoid an air carrier Y jet rapidly approaching us. The TCASII commanded a climb as the controller told us to turn to a 360 degree heading. We maintained visual with the various aircraft at our altitude and above us, so we turned and only climbed 300 ft. I could not climb because of the aircraft at FL350 and I was able to safely turn visually away from the conflict. Air carrier Y jet also appeared to take evasive action. I called mci center and discussed the situation. The supervisor said a report was going to washington and that it was a controller error. I asked him if the controller was new and training. He said no. Without the full real time picture the TCASII gave me, I believe we would have had a midair collision. Closure speeds were in excess of 600 KTS and we came within 2.5 mi. All of this occurred very rapidly even as we watched it develop.

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Original NASA ASRS Text

Title: FLC COUNTERS TCASII RA WITH EVASIVE ACTION MANEUVERS AT RA COMMANDS AND VISUAL SIGHTINGS.

Narrative: I WAS IN CRUISE FLT AT FL330 PROCEEDING DIRECTLY TO CNU VOR. AT APPROX XA05 Z, 100 NM S OF CNU AND ABOUT 30 SW OF TUL, THE FO AND I OBSERVED TFC ABOVE US AT FL350 AND ALSO BELOW US AT FL310. AS THESE ACFT APCHED, WE WERE TOLD TO TURN L 10 DEG ANOTHER ACFT THEN APPEARED ON OUR TCASII AT OUR SAME ALT OF FL330. WE WERE THEN GIVEN ANOTHER TURN 15 DEG L. AS WE MADE OUR TURN, A FOURTH ACFT IMMEDIATELY APPEARED ON OUR TCASII. WE WERE THEN GIVEN A FURTHER TURN ABOUT 40 DEG L TO A 270 DEG HDG. WE WATCHED THE TCASII AS THE FOURTH ACFT CONVERGED ON US. I BEGAN A TURN BACK TO THE N TO AVOID AN ACR Y JET RAPIDLY APCHING US. THE TCASII COMMANDED A CLB AS THE CTLR TOLD US TO TURN TO A 360 DEG HDG. WE MAINTAINED VISUAL WITH THE VARIOUS ACFT AT OUR ALT AND ABOVE US, SO WE TURNED AND ONLY CLBED 300 FT. I COULD NOT CLB BECAUSE OF THE ACFT AT FL350 AND I WAS ABLE TO SAFELY TURN VISUALLY AWAY FROM THE CONFLICT. ACR Y JET ALSO APPEARED TO TAKE EVASIVE ACTION. I CALLED MCI CTR AND DISCUSSED THE SIT. THE SUPVR SAID A RPT WAS GOING TO WASHINGTON AND THAT IT WAS A CTLR ERROR. I ASKED HIM IF THE CTLR WAS NEW AND TRAINING. HE SAID NO. WITHOUT THE FULL REAL TIME PICTURE THE TCASII GAVE ME, I BELIEVE WE WOULD HAVE HAD A MIDAIR COLLISION. CLOSURE SPDS WERE IN EXCESS OF 600 KTS AND WE CAME WITHIN 2.5 MI. ALL OF THIS OCCURRED VERY RAPIDLY EVEN AS WE WATCHED IT DEVELOP.

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.