Narrative:

While being vectored on the downwind at 3;000 ft; we were advised of traffic at 12 o'clock and 2 miles and descending. The aircraft appeared on TCAS and was only 200 ft below us. Before I could get a change in altitude or direction we received an RA to climb. We climbed to about 3;400 ft and advised ATC. The aircraft was in sight and descending. Once completely clear we descended back to 3;000. We were just vectored too close to the aircraft and the aircraft did not descend fast enough.

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Original NASA ASRS Text

Title: CRJ700 Captain experiences a TCAS RA with descending traffic at 12 O'clock while being vectored downwind at 3;000 FT for landing at ORF.

Narrative: While being vectored on the downwind at 3;000 FT; we were advised of traffic at 12 o'clock and 2 miles and descending. The aircraft appeared on TCAS and was only 200 FT below us. Before I could get a change in altitude or direction we received an RA to climb. We climbed to about 3;400 FT and advised ATC. The aircraft was in sight and descending. Once completely clear we descended back to 3;000. We were just vectored too close to the aircraft and the aircraft did not descend fast enough.

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.