Narrative:

Air carrier X approximately 15 mi south of kiowa VOR inbound to den at 11000 ft when a TCASII TA, then an RA sounded, almost at the same time. The RA told us to climb. We climbed to 11500 ft at which time we saw on the TCASII display that the traffic Y was at 11000 ft about 2 mi to our left apparently in the opposite direction. We never got a visual on the traffic Y. We descended back to 11000 ft.

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Original NASA ASRS Text

Title: ACR X NON ADHERENCE TO ATC CLRNC TCASII TA RA CLB. EVASIVE ACTION CLB.

Narrative: ACR X APPROX 15 MI S OF KIOWA VOR INBOUND TO DEN AT 11000 FT WHEN A TCASII TA, THEN AN RA SOUNDED, ALMOST AT THE SAME TIME. THE RA TOLD US TO CLB. WE CLBED TO 11500 FT AT WHICH TIME WE SAW ON THE TCASII DISPLAY THAT THE TFC Y WAS AT 11000 FT ABOUT 2 MI TO OUR L APPARENTLY IN THE OPPOSITE DIRECTION. WE NEVER GOT A VISUAL ON THE TFC Y. WE DSNDED BACK TO 11000 FT.

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.