Narrative:

Before the alert air carrier X was given a left turn for traffic of 20 degrees, the controller asked our new heading which was 220 degrees. Then another aircraft began a long discussion with the controller about deviation around devels towers and some other intersection. During this discussion we got a TCASII alert at 6 mi at our altitude. By time X got to controller we got a TCASII resolution to climb 2000 FPM. The controller wanted to turn us 40 degrees left and to descend to 310. ZDV said traffic a military trainer with a call sign of military Y. Supplemental information from acn 272747: the captain and I immediately looked out and picked up the traffic. It appeared to be slightly above us and heading straight for us. Seconds later we received a TCASII RA 'climb, climb.' I disengaged the autoplt and started a 2000 FPM climb to comply. The radio was garbled. I heard '...turn left 40 degrees.' I did not react immediately because I wasn't sure that was for us. Seconds later the captain said 'left 40 degrees, descend!' I turned and descended immediately and looked out to see the other aircraft turning right into us. By this time the aircraft showed 2 mi out on the TCASII. I immediately rolled out and pulled back on the yoke to break the descent and start a climb. I pulled hard enough to get into mach buffet. We were at about 34600 ft at this time. (At this time, the traffic passed 500-1000 ft directly beneath us.) I asked the controller to mark the tape. If you've got a visual on your traffic, keep it. I was inside and out and almost missed yanking on the yoke to prevent the midair. Question a controller who gives you maneuvers opposite to what should be correct (TCASII showed a climb during the entire incident). We may have inadvertently descended into the other aircraft while he was following an RA. Supplemental information from acn 272872: military Y on a cel navigation clearance when reaching a flight planned turn point, we executed the planned 90 degree turn and immediately became a conflict with air carrier X dc-9. We were unable to advise ZDV prior to our turn due to radio traffic. We started an immediate descent to avoid the traffic. The dc-9 traffic passed above and to the right with over 1500 ft separation.

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Original NASA ASRS Text

Title: ACR X TCASII RA WITH SAME ALT ASSIGNED MIL Y HAD LTSS. SYS ERROR. EVASIVE ACTION TAKEN.

Narrative: BEFORE THE ALERT ACR X WAS GIVEN A L TURN FOR TFC OF 20 DEGS, THE CTLR ASKED OUR NEW HDG WHICH WAS 220 DEGS. THEN ANOTHER ACFT BEGAN A LONG DISCUSSION WITH THE CTLR ABOUT DEV AROUND DEVELS TWRS AND SOME OTHER INTXN. DURING THIS DISCUSSION WE GOT A TCASII ALERT AT 6 MI AT OUR ALT. BY TIME X GOT TO CTLR WE GOT A TCASII RESOLUTION TO CLB 2000 FPM. THE CTLR WANTED TO TURN US 40 DEGS L AND TO DSND TO 310. ZDV SAID TFC A MIL TRAINER WITH A CALL SIGN OF MIL Y. SUPPLEMENTAL INFO FROM ACN 272747: THE CAPT AND I IMMEDIATELY LOOKED OUT AND PICKED UP THE TFC. IT APPEARED TO BE SLIGHTLY ABOVE US AND HDG STRAIGHT FOR US. SECONDS LATER WE RECEIVED A TCASII RA 'CLB, CLB.' I DISENGAGED THE AUTOPLT AND STARTED A 2000 FPM CLB TO COMPLY. THE RADIO WAS GARBLED. I HEARD '...TURN L 40 DEGS.' I DID NOT REACT IMMEDIATELY BECAUSE I WASN'T SURE THAT WAS FOR US. SECONDS LATER THE CAPT SAID 'L 40 DEGS, DSND!' I TURNED AND DSNDED IMMEDIATELY AND LOOKED OUT TO SEE THE OTHER ACFT TURNING RIGHT INTO US. BY THIS TIME THE ACFT SHOWED 2 MI OUT ON THE TCASII. I IMMEDIATELY ROLLED OUT AND PULLED BACK ON THE YOKE TO BREAK THE DSCNT AND START A CLB. I PULLED HARD ENOUGH TO GET INTO MACH BUFFET. WE WERE AT ABOUT 34600 FT AT THIS TIME. (AT THIS TIME, THE TFC PASSED 500-1000 FT DIRECTLY BENEATH US.) I ASKED THE CTLR TO MARK THE TAPE. IF YOU'VE GOT A VISUAL ON YOUR TFC, KEEP IT. I WAS INSIDE AND OUT AND ALMOST MISSED YANKING ON THE YOKE TO PREVENT THE MIDAIR. QUESTION A CTLR WHO GIVES YOU MANEUVERS OPPOSITE TO WHAT SHOULD BE CORRECT (TCASII SHOWED A CLB DURING THE ENTIRE INCIDENT). WE MAY HAVE INADVERTENTLY DSNDED INTO THE OTHER ACFT WHILE HE WAS FOLLOWING AN RA. SUPPLEMENTAL INFO FROM ACN 272872: MIL Y ON A CEL NAV CLRNC WHEN REACHING A FLT PLANNED TURN POINT, WE EXECUTED THE PLANNED 90 DEG TURN AND IMMEDIATELY BECAME A CONFLICT WITH ACR X DC-9. WE WERE UNABLE TO ADVISE ZDV PRIOR TO OUR TURN DUE TO RADIO TFC. WE STARTED AN IMMEDIATE DSCNT TO AVOID THE TFC. THE DC-9 TFC PASSED ABOVE AND TO THE R WITH OVER 1500 FT SEPARATION.

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.