Narrative:

Air carrier X heavy jet reported a close call this evening with what he believed to be an small transport X. A 40 degree right turn was necessary to avoid a situation. Pilot thanked me 3 times for saving his day. I had ny TRACON follow small transport X. While doing this they observed small transport X bust the TCA at bdr, but could not get a tail number.

Google
 

Original NASA ASRS Text

Title: ACR X HAD AIRBORNE CONFLICT WITH SMT Y. SEE AND AVOID CONCEPT. SMT Y UNAUTH PENETRATION OF BDR TCA. PLTDEV.

Narrative: ACR X HVY JET RPTED A CLOSE CALL THIS EVENING WITH WHAT HE BELIEVED TO BE AN SMT X. A 40 DEG R TURN WAS NECESSARY TO AVOID A SITUATION. PLT THANKED ME 3 TIMES FOR SAVING HIS DAY. I HAD NY TRACON FOLLOW SMT X. WHILE DOING THIS THEY OBSERVED SMT X BUST THE TCA AT BDR, BUT COULD NOT GET A TAIL NUMBER.

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.