Narrative:

I departed kansas city, downtown (mkc) at approximately X:00 pm local time. The tower cleared me for frequency change and advised contact kc departure on 132.95 for VFR advisories. Upon contacting departure I was given a squawk and advised to remain clear of the TCA which I did. Departure then advised radar contact and cleared to enter the TCA with a climb to 7500' and proceed on course. I acknowledged and climbed on course to 7500' where leveled off and established a cruise of 150 KTS TAS. Departure then advised traffic 12 O'clock and 10 mi. I acknowledged but did not see the traffic. They then issued a heading of 360 degree for traffic which I still did not see. ATC's next transmission was from a new controller and in a very anxious manner she said 'small aircraft turn right (? Left) immediately heading 270 degree traffic an light transport 12 O'clock and 3 mi descending through 8000', turn left now.' I turned left in a 60 degree bank immediately and saw the light transport pass behind me at my altitude and about 1/2 mi. At this point I verified that I was in the TCA and got the controllers initials (xx). I was then issued on course and terminated upon leaving the TCA. I believe that the problem was in a rotation of controllers because the first controller obviously knew the problem existed as he issued the traffic and did give an initial heading for the traffic. The second controller then did not catch the problem till immediate action was necessary. I was not reprimanded in any way or even questioned regarding my actions so I do not believe I was a contributing factor except for the fact that I did not see the traffic when it was issued. However head on traffic is very difficult to see and ATC should take that into consideration. The light transport jet was not on the same frequency and therefore could have been a contributing factor but I do not know that for a fact.

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Original NASA ASRS Text

Title: OPERROR CREATES A POTENTIAL CONFLICT.

Narrative: I DEPARTED KANSAS CITY, DOWNTOWN (MKC) AT APPROX X:00 PM LCL TIME. THE TWR CLRED ME FOR FREQ CHANGE AND ADVISED CONTACT KC DEP ON 132.95 FOR VFR ADVISORIES. UPON CONTACTING DEP I WAS GIVEN A SQUAWK AND ADVISED TO REMAIN CLR OF THE TCA WHICH I DID. DEP THEN ADVISED RADAR CONTACT AND CLRED TO ENTER THE TCA WITH A CLB TO 7500' AND PROCEED ON COURSE. I ACKNOWLEDGED AND CLBED ON COURSE TO 7500' WHERE LEVELED OFF AND ESTABLISHED A CRUISE OF 150 KTS TAS. DEP THEN ADVISED TFC 12 O'CLOCK AND 10 MI. I ACKNOWLEDGED BUT DID NOT SEE THE TFC. THEY THEN ISSUED A HDG OF 360 DEG FOR TFC WHICH I STILL DID NOT SEE. ATC'S NEXT XMISSION WAS FROM A NEW CTLR AND IN A VERY ANXIOUS MANNER SHE SAID 'SMA TURN R (? LEFT) IMMEDIATELY HDG 270 DEG TFC AN LTT 12 O'CLOCK AND 3 MI DSNDING THROUGH 8000', TURN L NOW.' I TURNED L IN A 60 DEG BANK IMMEDIATELY AND SAW THE LTT PASS BEHIND ME AT MY ALT AND ABOUT 1/2 MI. AT THIS POINT I VERIFIED THAT I WAS IN THE TCA AND GOT THE CTLRS INITIALS (XX). I WAS THEN ISSUED ON COURSE AND TERMINATED UPON LEAVING THE TCA. I BELIEVE THAT THE PROB WAS IN A ROTATION OF CTLRS BECAUSE THE FIRST CTLR OBVIOUSLY KNEW THE PROB EXISTED AS HE ISSUED THE TFC AND DID GIVE AN INITIAL HDG FOR THE TFC. THE SECOND CTLR THEN DID NOT CATCH THE PROB TILL IMMEDIATE ACTION WAS NECESSARY. I WAS NOT REPRIMANDED IN ANY WAY OR EVEN QUESTIONED REGARDING MY ACTIONS SO I DO NOT BELIEVE I WAS A CONTRIBUTING FACTOR EXCEPT FOR THE FACT THAT I DID NOT SEE THE TFC WHEN IT WAS ISSUED. HOWEVER HEAD ON TFC IS VERY DIFFICULT TO SEE AND ATC SHOULD TAKE THAT INTO CONSIDERATION. THE LTT JET WAS NOT ON THE SAME FREQ AND THEREFORE COULD HAVE BEEN A CONTRIBUTING FACTOR BUT I DO NOT KNOW THAT FOR A FACT.

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.