Narrative:

Flight to hpn we were given the bruno three arrival. The FMS was programmed for said arrival however during preflight/route insertion the route was mistakenly not double checked. As we were descending on the bruno arrival around intersection sound ATC gave us direct bdr VOR. After bdr the FMS auto sequenced to zombi intersection on the ILS runway 34 rather than to alixx and then to rymes. There was a traffic conflict that arose as we turned to zombi. We climbed to avoid traffic and then air traffic control gave us vectors to the airport. I am not sure why the FMS auto-sequenced. Upon further review of the air carrier airport briefing guide there was instruction to look out for this. Better preflight preparation would have helped by looking over the airport briefing more thoroughly.

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Original NASA ASRS Text

Title: An A320 crew failed to properly program the FMS for an HPN BRUNO arrival. As a result a track deviation occurred while the crew simultaneously performed a TCAS TA maneuver.

Narrative: Flight to HPN we were given the BRUNO THREE arrival. The FMS was programmed for said arrival however during preflight/route insertion the route was mistakenly not double checked. As we were descending on the BRUNO arrival around intersection SOUND ATC gave us direct BDR VOR. After BDR the FMS auto sequenced to ZOMBI intersection on the ILS Runway 34 rather than to ALIXX and then to RYMES. There was a traffic conflict that arose as we turned to ZOMBI. We climbed to avoid traffic and then Air Traffic Control gave us vectors to the airport. I am not sure why the FMS auto-sequenced. Upon further review of the air carrier airport briefing guide there was instruction to look out for this. Better preflight preparation would have helped by looking over the airport briefing more thoroughly.

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.