Small Aircraft; High Wing; 1 Eng; Fixed Gear
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 11
Communication Breakdown; Situational Awareness
ATC Issue All Types; Conflict NMAC
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance
Procedure; Human Factors
The Approach Controller pointed out a survey flight; Aircraft Y; that was transiting from west to east at 2000 feet. The Approach Controller switched Aircraft X to tower; at 2000 feet inbound from southeast turning straight towards Aircraft Y with 200 feet difference and they did not have Aircraft Y in sight. I issued traffic again and pilot replied he had him on TCAS. I instructed Aircraft X to descend to 1500 feet for traffic; pilot then reported Aircraft Y in sight. Aircraft X passed underneath Aircraft Y approximately 200 to 300 feet.Recommend survey operations be during night shifts when there is less traffic. Approach control should have issued traffic before switching control to tower.
SJU Tower Controller received an aircraft from the TRACON at the same altitude and on a conflicting course with orbiting traffic known to both Controllers.