Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 227; Flight Crew Type 8000
Communication Breakdown
ATC Issue All Types; Conflict NMAC
Air Traffic Control Provided Assistance; Flight Crew Took Evasive Action
Human Factors; Procedure
On climb out from takeoff on the TERPZ 6 RNAV Departure; Tower issued an immediate right turn away from traffic that was approaching to our front. Simultaneously we received a RA to climb. I executed a turn and climb; complying with the RA as the Captain had visual with the small aircraft. The Captain continued to monitor the other aircraft while keeping me informed as to its proximity. As the traffic continued to get closer I aggressively banked the aircraft in the attempt to avoid a midair collision. Between the aggressive bank and climb; we avoided impact. After the threat ended we proceeded to clean the aircraft up and climb out away from BWI Tower admitted that a breakdown had occurred between the Tower Controller and Departure.
Air carrier First Officer reported a NMAC after takeoff at BWI.