With no survivors anticipated to be discovered, the main target is popping to how a navy helicopter on a coaching train collided with an American Airways passenger jet.
What we all know up to now
At 8.47pm, with the airplane at 600ft and making ready to cross over the river, an air visitors controller contacted the helicopter’s pilot to inform them to move behind the airplane.
“PAT25 [military helicopter] do you have the CRJ [passenger jet] in sight? PAT25, pass behind the CRJ.”
0:06
Audio exhibits air visitors controller instructing navy helicopter to keep away from passenger jet.
Airport safety cameras captured the helicopter on a collision course with the airplane within the last seconds earlier than the crash.
0:12
CCTV footage exhibits mid-air crash in Washington, DC.
Flight monitoring web sites overlooked the airplane at 8.48.03pm native time. Its final reported altitude was 275ft.
Seconds after the crash, a pant may be heard coming from the air visitors management room.
“Did you see that?” somebody asks.
0:02
Audio from the air visitors management room was captured seconds after the crash.
The emergency alert was sounded round one minute later, at 8.48pm.
“Crash crash crash – this is Alert 3,” rang the alert over the Metropolitan Washington Airports Authority Public Security communications system.
“It’s on the, uh… approaching runway 3-3. Approaching runway 3-3. Helicopter crash.”
After a number of minutes, somebody asks to verify the small print.
“You said that was a helo and a CRJ?”
“That is affirmative. A helo and a CRJ approaching at 3-3.”
“Ok. How many souls on board?”
“We don’t have any of that information.”
0:49
Audio from the Metropolitan Washington Airports Authority Public Security communications system was captured detailing the moments after the crash.
Police started to obtain experiences of a crash at 8.53pm. By 8.58pm, the primary emergency response car had arrived on the website and reported an plane within the water.
Six minutes later, at 9.04pm, the search and rescue mission was launched, with the primary boat arriving at 9.11pm.
2:10
Flight radar exhibits airplane’s last moments
Why did the plane collide?
Transport secretary Sean Duffy informed a press convention that the crash was “absolutely preventable”.
Requested if the airplane was conscious there was a helicopter within the space, Mr Duffy replied: “I would say the helicopter was aware that there was a plane in the area.”
A map printed by the Federal Aviation Administration, which manages US airspace, advises helicopters flying to the east of the airport alongside the Potomac River to remain beneath 200ft.
Flight monitoring knowledge, nonetheless, exhibits the navy helicopter had shortly ascended to 300ft earlier than the crash – 100ft above the really helpful altitude.
Picture:
Final tracked places for each flights, in keeping with knowledge from Flightradar24. Pic: Google Earth
It is unclear if the helicopter took any motion in response to the warning issued by air visitors management.
Former air visitors controller Michele Robson suggests the directions from the air visitors tower might have been clearer, particularly contemplating there was one other airplane, an Airbus A319, within the helicopter’s line of sight.
“I would expect them to have specified the airline as well so that there wasn’t any confusion,” she says.
Ms Robson says it is attainable that the helicopter pilot thought the Airbus, which was 9.2km away, was the a lot smaller American Eagle airplane simply 4.5km away.
“In the dark in a city environment with lots of lights, and at that distance, I don’t think the helicopter would have been able to tell what type [of plane] the Airbus was that far away, so may have just assumed.
“The CRJ and Airbus look fairly completely different, however at midnight it will make it a lot tougher.”
Timeline exhibits how the crash response unfolded