Narrative:

I was flying as first officer on a B727 departing runway 36R at dfw. Cleared for takeoff and assigned 345 degree heading. At the departure end of the runway we turned to 345 degrees and at 800 ft AGL we decreased our climb rate to 500-1000 FPM and began to raise the flaps. We had not completed reconfiguring when we passed through 1100 ft AGL and immediately got a climb RA. (TCASII RA's enable at 1100 ft AGL.) the captain quickly increased our climb but we had to use care as we were at or slightly below maneuvering speed. I began a visual lookout for the aircraft and saw nothing. Then checking the TCASII I saw a red target dead center at -01. The target began to descend and we got a 'clear of conflict' aural signal. We asked departure for a tower phone number and called after the flight. We were told the other aircraft was a saab 340 that had departed runway 36L at a mid-field intersection. We were not advised of the saab. I am not sure whether or not he was advised of us. He was assigned a departure heading of 270 degrees. The tower supervisor said he was providing visual separation and had both aircraft in sight. He told us the saab made an abrupt descent apparently in response to our close pass. I don't know if this was due to visual contact or an RA on his part as well. It was impossible for us to see the saab as our nose was at least 10-15 degrees high during takeoff and the initial climb. When asked why they vectored us toward the adjacent runway when aircraft were taking off we were told this was to avoid the runway 35 departures and was standard. We never saw the saab, but believe we came very close (100-200 ft) in a very critical phase of flight. Normally, according to the tower supervisor, we would be advised of traffic departing on adjacent runways. Had this been the case, we could have monitored the traffic, been more cautious of his position and possibly avoided the conflict. We should not have been given a turn towards the traffic until he was well established on his westerly heading.

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Original NASA ASRS Text

Title: WITH DFW TWR PROVIDING VISUAL SEPARATION TO 2 ACRS A TCASII RA WAS FLOWN BY ONE AND AN ABRUPT DIVE MADE BY THE OTHER AT LOW ALT TO AVOID CONFLICT.

Narrative: I WAS FLYING AS FO ON A B727 DEPARTING RWY 36R AT DFW. CLRED FOR TKOF AND ASSIGNED 345 DEG HDG. AT THE DEP END OF THE RWY WE TURNED TO 345 DEGS AND AT 800 FT AGL WE DECREASED OUR CLB RATE TO 500-1000 FPM AND BEGAN TO RAISE THE FLAPS. WE HAD NOT COMPLETED RECONFIGURING WHEN WE PASSED THROUGH 1100 FT AGL AND IMMEDIATELY GOT A CLB RA. (TCASII RA'S ENABLE AT 1100 FT AGL.) THE CAPT QUICKLY INCREASED OUR CLB BUT WE HAD TO USE CARE AS WE WERE AT OR SLIGHTLY BELOW MANEUVERING SPD. I BEGAN A VISUAL LOOKOUT FOR THE ACFT AND SAW NOTHING. THEN CHKING THE TCASII I SAW A RED TARGET DEAD CTR AT -01. THE TARGET BEGAN TO DSND AND WE GOT A 'CLR OF CONFLICT' AURAL SIGNAL. WE ASKED DEP FOR A TWR PHONE NUMBER AND CALLED AFTER THE FLT. WE WERE TOLD THE OTHER ACFT WAS A SAAB 340 THAT HAD DEPARTED RWY 36L AT A MID-FIELD INTXN. WE WERE NOT ADVISED OF THE SAAB. I AM NOT SURE WHETHER OR NOT HE WAS ADVISED OF US. HE WAS ASSIGNED A DEP HEADING OF 270 DEGS. THE TWR SUPVR SAID HE WAS PROVIDING VISUAL SEPARATION AND HAD BOTH ACFT IN SIGHT. HE TOLD US THE SAAB MADE AN ABRUPT DSCNT APPARENTLY IN RESPONSE TO OUR CLOSE PASS. I DON'T KNOW IF THIS WAS DUE TO VISUAL CONTACT OR AN RA ON HIS PART AS WELL. IT WAS IMPOSSIBLE FOR US TO SEE THE SAAB AS OUR NOSE WAS AT LEAST 10-15 DEGS HIGH DURING TKOF AND THE INITIAL CLB. WHEN ASKED WHY THEY VECTORED US TOWARD THE ADJACENT RWY WHEN ACFT WERE TAKING OFF WE WERE TOLD THIS WAS TO AVOID THE RWY 35 DEPS AND WAS STANDARD. WE NEVER SAW THE SAAB, BUT BELIEVE WE CAME VERY CLOSE (100-200 FT) IN A VERY CRITICAL PHASE OF FLT. NORMALLY, ACCORDING TO THE TWR SUPVR, WE WOULD BE ADVISED OF TFC DEPARTING ON ADJACENT RWYS. HAD THIS BEEN THE CASE, WE COULD HAVE MONITORED THE TFC, BEEN MORE CAUTIOUS OF HIS POS AND POSSIBLY AVOIDED THE CONFLICT. WE SHOULD NOT HAVE BEEN GIVEN A TURN TOWARDS THE TFC UNTIL HE WAS WELL ESTABLISHED ON HIS WESTERLY HEADING.

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.