Narrative:

Air carrier X takeoff from clg runway 18R, we were cleared to 8000 ft and runway heading. Between 1500 and 1700 MSL I noticed an small aircraft crossing our flight path left to right, about 2500 ft MSL. I reduced our climb rate to stay at 2000 ft and stay below the small aircraft until we were past his flight path. I had the first officer notify the controller of the other aircraft and they seemed to be unaware of it. Then they gave us a number to call on the ground. Upon landing I called the tower and the supervisor told me the small aircraft had taken off on runway 18L and been given a left turn for separation. The controller had said he saw the small aircraft in a left turn after takeoff. The small aircraft's transponder wasn't working so they didn't have good fix on him. When I called they said they were not sure if the small aircraft's gyro was not working properly. I told the controller that I had not made any evasive action but just reduced my climb to provide separation. Then I asked if I had done anything wrong and his reply was that I had done everything right. He said that the problem was with the small aircraft flew wrong heading.

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Original NASA ASRS Text

Title: SMA NON ADHERENCE TO ATC CLRNC WRONG HDG HAD NMAC LTSS FROM ACR X EVASIVE ACTION TAKEN LEVEL OFF DURING CLB SEE AND AVOID. PLTDEV.

Narrative: ACR X TKOF FROM CLG RWY 18R, WE WERE CLRED TO 8000 FT AND RWY HDG. BTWN 1500 AND 1700 MSL I NOTICED AN SMA XING OUR FLT PATH L TO R, ABOUT 2500 FT MSL. I REDUCED OUR CLB RATE TO STAY AT 2000 FT AND STAY BELOW THE SMA UNTIL WE WERE PAST HIS FLT PATH. I HAD THE FO NOTIFY THE CTLR OF THE OTHER ACFT AND THEY SEEMED TO BE UNAWARE OF IT. THEN THEY GAVE US A NUMBER TO CALL ON THE GND. UPON LNDG I CALLED THE TWR AND THE SUPVR TOLD ME THE SMA HAD TAKEN OFF ON RWY 18L AND BEEN GIVEN A L TURN FOR SEPARATION. THE CTLR HAD SAID HE SAW THE SMA IN A L TURN AFTER TKOF. THE SMA'S TRANSPONDER WASN'T WORKING SO THEY DIDN'T HAVE GOOD FIX ON HIM. WHEN I CALLED THEY SAID THEY WERE NOT SURE IF THE SMA'S GYRO WAS NOT WORKING PROPERLY. I TOLD THE CTLR THAT I HAD NOT MADE ANY EVASIVE ACTION BUT JUST REDUCED MY CLB TO PROVIDE SEPARATION. THEN I ASKED IF I HAD DONE ANYTHING WRONG AND HIS REPLY WAS THAT I HAD DONE EVERYTHING RIGHT. HE SAID THAT THE PROBLEM WAS WITH THE SMA FLEW WRONG HDG.

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.