Narrative:

I was the second in command and the pilot monitoring for this approach. During his briefing; the pilot in command mentioned that teb was a high traffic area and that other aircraft needed to be monitored. Once inside the class B airspace for ewr; there were a couple of aircraft that came close to our aircraft; but there was no TCAS advisory. When we were being vectored to the VOR 24 at teb; approximately 10 miles from the airport and due west; two aircraft appeared on our TCAS in close proximity to our aircraft. One aircraft was at our 2 o'clock and 200' below us. The other aircraft was at our 10 o'clock and 300' below us. I had the traffic in sight at 2 o'clock. We got a TA (traffic advisory) on both aircraft. Shortly; we received a RA (resolution advisory) on the 2 o'clock traffic. The RA was to climb; which the pilot in command complied with. Our maximum altitude during the maneuver was 2180'; and at that time; the RA ceased. The conflicting aircraft passed under us at approximately 400' separation (after the RA). The pilot in command returned to our assigned altitude; and we continued being vectored. New york approach was not notified because of the non stop radio traffic at that time. A normal approach and landing was made into teb. The acp was notified after arrival to teb. Both passengers noticed the increase in power and altitude; and one of the passengers noticed the aircraft passing directly under us. The pilot in command explained to both of them about the TCAS system; and how we had used it to avoid the conflict.

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Original NASA ASRS Text

Title: A BE400 First Officer described a NMAC while on vectors to TEB Runway 24 at 2;000'. Traffic was two aircraft one of which created a Climb RA.

Narrative: I was the second in command and the pilot monitoring for this approach. During his briefing; the pilot in command mentioned that TEB was a high traffic area and that other aircraft needed to be monitored. Once inside the Class B airspace for EWR; there were a couple of aircraft that came close to our aircraft; but there was no TCAS advisory. When we were being vectored to the VOR 24 at TEB; approximately 10 miles from the airport and due west; two aircraft appeared on our TCAS in close proximity to our aircraft. One aircraft was at our 2 o'clock and 200' below us. The other aircraft was at our 10 o'clock and 300' below us. I had the traffic in sight at 2 o'clock. We got a TA (Traffic Advisory) on both aircraft. Shortly; we received a RA (Resolution Advisory) on the 2 o'clock traffic. The RA was to climb; which the pilot in command complied with. Our maximum altitude during the maneuver was 2180'; and at that time; the RA ceased. The conflicting aircraft passed under us at approximately 400' separation (after the RA). The pilot in command returned to our assigned altitude; and we continued being vectored. New York Approach was not notified because of the non stop radio traffic at that time. A normal approach and landing was made into TEB. The ACP was notified after arrival to TEB. Both passengers noticed the increase in power and altitude; and one of the passengers noticed the aircraft passing directly under us. The pilot in command explained to both of them about the TCAS system; and how we had used it to avoid the conflict.

Data retrieved from NASA's ASRS site as of April 2012 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.