Narrative:

During descent into the vero beach; fl; airport and while still in contact with miami center; we were instructed to proceed direct to the vrb VOR for a visual approach to runway 4. We were approximately 10 miles north-northwest of the airport at this time and called the field in sight. Miami cleared us for the visual approach and instructed us to contact the tower. We were told by the tower of an aircraft in the vicinity of the VOR. While [we were] on the visual approach; we were looking outside for traffic when; without warning from a TA; we received an RA climb instruction. The flying pilot complied immediately with the instruction and I (the non-flying pilot) saw the aircraft (for the first time) pass approximately 100-200 ft below our aircraft. Almost simultaneously with that passage; another RA 'descend now' was issued. The flying pilot complied with this instruction and we never saw the other aircraft that was supposedly in conflict above us. The tower then told us of 2 pieces of traffic to look for and I in turn reported the RA to them. We then began our left base for runway 4 and landed without incident.

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Original NASA ASRS Text

Title: A Corporate Jet Captain approaching VRB reported taking evasive action responding to two TCAS targets; one low then one high. The NMAC aircraft were reported by ATC after the aircraft had past.

Narrative: During descent into the Vero Beach; FL; airport and while still in contact with Miami Center; we were instructed to proceed direct to the VRB VOR for a visual approach to Runway 4. We were approximately 10 miles north-northwest of the airport at this time and called the field in sight. Miami cleared us for the visual approach and instructed us to contact the Tower. We were told by the Tower of an aircraft in the vicinity of the VOR. While [we were] on the visual approach; we were looking outside for traffic when; without warning from a TA; we received an RA climb instruction. The flying pilot complied immediately with the instruction and I (the non-flying pilot) saw the aircraft (for the first time) pass approximately 100-200 FT below our aircraft. Almost simultaneously with that passage; another RA 'descend now' was issued. The flying pilot complied with this instruction and we never saw the other aircraft that was supposedly in conflict above us. The Tower then told us of 2 pieces of traffic to look for and I in turn reported the RA to them. We then began our left base for Runway 4 and landed without incident.

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.