B737 Next Generation Undifferentiated
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 250; Flight Crew Type 250
Distraction; Situational Awareness; Time Pressure
Airspace Violation All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR
Flight Crew Requested ATC Assistance / Clarification
Procedure; Environment - Non Weather Related; Human Factors
Flight to LGA was turning final descent from 3000 to 2000 ft. A TCAS TA alert from drone was received in the cockpit; from the TCAS system reporting 200 ft below TA call out; twice after visual sighting of the drone by the FO.Be more aware of possible drone incursions into controlled airspace during takeoff and landing.
The reporter stated his estimated the UAV size as 4 ft X 4 ft with a turquoise top and travelling at a high speed. It was close enough that he clearly saw the blades. At the time of the encounter his aircraft was at 2;300 ft over the bay in a left turn toward Runway 22. ATC did not have the transponder traffic. The crew was confused by the transponder return and additionally puzzled why a TA alert was issued with the traffic reported at -200 when a RA should have been issued.
On approach to Runway 22 LGA; while on a vector and joining the Localizer the PM saw a quad drone cross from right to left under our aircraft. The PM estimated the drone flew approximately 200 to 300 ft feet below our altitude. We also received a brief TA that appeared to correspond to the position of the drone. We were not informed of any other traffic that could be a factor; nor did we see any other traffic in the area.
B737 flight crew reported a TCAS TA alert descending from 3;000 to 2;000 ft while turning a left base leg to final for LGA Runway 22.