Narrative:

At 3000 feet 10 NM northwest; approach pointed out the airport & after visual confirmation cleared our beechjet 400 for a visual and to contact tower. I planned to enter downwind at 1500 AGL on a 45 abeam the runway. Approach stated other aircraft were in the pattern and I looked at my mfd for traffic and visually saw none. As soon as I turned downwind; I got an RA and by the time I could react; was by the traffic. I never saw him & never reacted. I believe that I passed over the traffic by a few hundred feet & was considerably faster. The copilot never saw the traffic & by the time TCAS avoidance was over; we were by the traffic. I thought I was careful enough but obviously need to be much more vigilant going into airports with tower only & no approach radar.

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Original NASA ASRS Text

Title: Beechjet 400 Captain reports TCAS RA while entering the VFR pattern at a tower controlled airport. No TCAS targets were visible prior to the warning and no evasive action was taken before the warning quickly ended.

Narrative: At 3000 feet 10 NM NW; Approach pointed out the airport & after visual confirmation cleared our Beechjet 400 for a visual and to contact Tower. I planned to enter downwind at 1500 AGL on a 45 abeam the runway. Approach stated other aircraft were in the pattern and I looked at my MFD for traffic and visually saw none. As soon as I turned downwind; I got an RA and by the time I could react; was by the traffic. I never saw him & never reacted. I believe that I passed over the traffic by a few hundred feet & was considerably faster. The Copilot never saw the traffic & by the time TCAS avoidance was over; we were by the traffic. I thought I was careful enough but obviously need to be much more vigilant going into airports with tower only & no approach radar.

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.