Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 279
Situational Awareness
ATC Issue All Types; Conflict Airborne Conflict
Flight Crew Took Evasive Action
Airport; Human Factors
We had to wait several minutes for a takeoff clearance due to general aviation operations. The Tower Controller at the time of departure was having a difficult time with the aircraft that turned into us. It may have been a student pilot as he sounded very inexperienced over the radio. We were finally cleared for departure from Runway 6; flying an assigned heading of 059 and maintain 3000. As we were climbing through about 400 AGL I spotted the single engine turning toward us. It was so close and converging that I had no time to point it out to my First Officer who was flying. I immediately said 'I have the aircraft;' and started an aggressive climbing left turn to get away from it. My First Officer did not see the aircraft until it was passing off his side of the aircraft. He said that he thought it was less than a quarter of a mile. This is my second near miss at this airport. The Controller was very agitated with this aircraft operator for failing to follow his assigned clearance. I know that we must share the airspace with General Aviation; however; I feel that something has to be done to prevent a tragedy from occurring at this airport.
Air carrier Captain reported taking evasive action at 400 feet AGL during departure from ISP to avoid a GA aircraft that was not complying with the Tower's instructions.