Narrative:

We were on an assigned heading of 160 degree with a clearance to descend to 2500' by approach control. Approach control said we had traffic at about 3 O'clock at 3000'. An small transport and that the traffic had us in sight. I looked to my right and I saw the small transport off my right wing and he was at my altitude less than 1/2 mi away heading approximately 90 degree. I started to initiate a climb to avoid the traffic, but when I climbed the traffic also started climbing. By this time the small transport was very close so I made a steep left turn of about 60 degree and made a rapid descent to avoid a collision. I notified the controller, and told him we had a close call with the small transport and he apologized and had me call him on the phone after we arrived in tulsa. He told me that he made an error and was very sorry. The small transport was on an assigned heading and altitude (3000') by approach control also. This was an error on the controllers part and he freely admitted it. I think in this case that vigilance on the part of the crew prevented a probable mid-air collision. Both aircraft were at 3000' MSL when near miss occurred. Supplemental information from acn 146640. I think the conflict was created because of the controller working a slower and higher commercial air carrier in ahead of general aviation traffic. This department us on an assigned head longer than should have been which created the conflict.

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Original NASA ASRS Text

Title: CLOSE PROX CPR-MDT GA-SMT BOTH ON RADAR VECTORS INTO TUL.

Narrative: WE WERE ON AN ASSIGNED HDG OF 160 DEG WITH A CLRNC TO DSND TO 2500' BY APCH CTL. APCH CTL SAID WE HAD TFC AT ABOUT 3 O'CLOCK AT 3000'. AN SMT AND THAT THE TFC HAD US IN SIGHT. I LOOKED TO MY R AND I SAW THE SMT OFF MY R WING AND HE WAS AT MY ALT LESS THAN 1/2 MI AWAY HDG APPROX 90 DEG. I STARTED TO INITIATE A CLB TO AVOID THE TFC, BUT WHEN I CLBED THE TFC ALSO STARTED CLBING. BY THIS TIME THE SMT WAS VERY CLOSE SO I MADE A STEEP L TURN OF ABOUT 60 DEG AND MADE A RAPID DSNT TO AVOID A COLLISION. I NOTIFIED THE CTLR, AND TOLD HIM WE HAD A CLOSE CALL WITH THE SMT AND HE APOLOGIZED AND HAD ME CALL HIM ON THE PHONE AFTER WE ARRIVED IN TULSA. HE TOLD ME THAT HE MADE AN ERROR AND WAS VERY SORRY. THE SMT WAS ON AN ASSIGNED HDG AND ALT (3000') BY APCH CTL ALSO. THIS WAS AN ERROR ON THE CTLRS PART AND HE FREELY ADMITTED IT. I THINK IN THIS CASE THAT VIGILANCE ON THE PART OF THE CREW PREVENTED A PROBABLE MID-AIR COLLISION. BOTH ACFT WERE AT 3000' MSL WHEN NEAR MISS OCCURRED. SUPPLEMENTAL INFO FROM ACN 146640. I THINK THE CONFLICT WAS CREATED BECAUSE OF THE CTLR WORKING A SLOWER AND HIGHER COMMERCIAL ACR IN AHEAD OF GENERAL AVIATION TFC. THIS DEPT US ON AN ASSIGNED HEAD LONGER THAN SHOULD HAVE BEEN WHICH CREATED THE CONFLICT.

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.