one �*our looker, one of our reporters, she said they from the: j from therresidents heeriflg frem the resieents were the hearing frem the resieents were the airport hearing frern the resieehts were the airport about near the airport talking about how sad they are, one of that j that although people are ever is them they who ever is picking them up they who ever is picking them up from the terminal it was due to land. they also said that to lend; they'e�*tsp said that gathered to land; they'ataa said that gathered on td land; they'atsd said that gathered on the roof those gathered on the roof at crash in shock allstate at the crash in shock and we also — i also bring in professor of environmental civil and environmental engineering from the university gouthern j gouthern colour 5 gouthern colour — j you for california. thank you for joining us now. can you give me sense of, i'm sure if a sense of, i'm not sure if you're aware of these yea-ire awareef these black, helicopters involved hawk helicopters were involved in this collision, one if you mea me a sense of what can give me a sense of what they are like is aircraft. very to hear they are like is aircraft. very - to hear - news, i they are like is aircraft. very l - to hear - news, just sorry to hear these news, just about this from the bbc

and infact and in fact a few minutes news andin, fact afewalindtes i think they are very sad age. i think they are very sad because on one end, situations because on one end, the passenger — usually the situations because on one end, the passer aircraft ;ually the situations because on one end, the passer aircraft with i the passenger aircraft with a system with the to 2= ;2 %7’——=§ this of it avoid this type of things. it stands for traffic and system and about ”gazette about like is the colliding was not a aircraft was not a commercial if it was a hairs-raftgitfit was a aircraft than hairsraftgritfit was a aircraft than the commercial aircraft than the two systems could talk with twe systems cedld talk withers we ”as m. ., ., other and twe systems cedtd tatk. withers w as,” m. ,, ., other and avoided twe systems cedtd talk. withe—e ”a as,” m, ~ ~ other and avoided that. each other and avoided that. this is really a sad and a sheer 7 and a sheer bad luck situation and a sheer bad luck that we dealing with that we are dealing with a black hawk "first as black hawk, hetitepter which, as they are not equipped that �* that - i understand

for that system. i understand as well that _ for that system. i understand as well that you've _ for that system. i understand as well that you've testified, | as well that you�*ve testified. example, before the senate fer exampte; trefdre the senate on boeing, lombardi committee on boeing, lombardi is a very well regarded jet we've been hearing, one maker, we've been hearing, one of the legal processes and eithsiegalmocesses and be an into this? this fem'flfit'f�*fis “eel? tf�* as a"? done into this? this fem'flfit'f�*fis “eel? tf�* as a"? done by :o this? this rshh'”=s*'hhs “esl? ts ss sh done by the |is? this rshh'”=s*'hhs “esl? ts ss sh done by the national 5 safety board transportation safety board that jurisdiction transportation safety board thatjurisdiction on all transportation accidents in the us and i have a lot of inaudible because they do a very thoroughjob and inaudible because they do a very thorough job and to a ssh? thefeeeh jeeiane' is a role in disciplinary role in they look at the investigation, they look at the crew communication, the of 7 of the 7 of the communication look of the communication between cockpit and air traffic and they look at all icentrel and theyteek at att technical systems of the the technical systems of the aircraft and if they i know if: 7 7 " ”irighifihé" ' know iflthe military?

den't knew if the mititary' * ' ' s " ' w " helicopter, to den't knew if the mititary' * , , w ,, , w ,, helicopter, to have den't knew if the mititaryw * w w w ww w w ww cockpit helicopter, to have den't knew if the mititaryw * w w w ww w w ww cockpit control ter, to have den't knew if the mititaryw * w w w ww w w ww cockpit control and to have the cockpit control and fly data recorded as the commercial aviation aircraft that they have and usually, takes maybe 7 maybe a? year for ntsb maybe a year for ntsb to itjj it 5 5 but once de it intestigatien set'enee” ' do their investigation, they de their i'nsestigatien. ' " " is they de their i'ntestigatient ' " " is a use ntsb this is a use ntsb investigation in my accident this is a use ntsb investigation in my and dent this is a use ntsb investigation in my and most investigation class and most they have a probably, they have a team because ntsb ride across the because ntsb ride acres; the it eeeae'se tttss ride aeress the it inaudible it was of board and one of the board members and other board members to have one of the board members and 0thl board d members to have one of the board members and 0thl board d members to of e one of the board members and 0thl board d members to of them ije board members. one of them on standby, they have is on standby, they have descended there and they will tfiusttasufhs’esis�*shksshs’ 7’ 7 7 7 but tfillsttsllths7esisshtsshs7 77 7 7 7 but at this stage, information but at this stage, are dealing search and m

z -: the search 7 the search and7 the search and rescue was ' n7tsb1rch and7 rescue was ' n7tsb investig7ators ie was ' n7tsb investig7ators will as done, ntsb investigators will look over that. we done, ntsb investigators will look over that.— done, ntsb investigators will look over that. we also have a fresh statement _ look over that. we also have a fresh statement from - look over that. we also have a fresh statement from the - look over that. we also have a fresh statement from the us l fresh statement frem the us source the army's source telling the reuters news that the three us army soldiers were on board, a black hawk helicopter that with a passenger settided with a passengerjet”"””’ ” ronald reagan need ronald reagan international airport, according .: us official 7to 7 to reuters to reuters news condition to reuters news condition of reuters news condition of anonymity. . news condition of anonymity. the vs on condition of anonymity. the person said that the on condition of anonymity. the person i the aid that the on condition of anonymity. the person �*the soldiers the on condition of anonymity. the person �*the soldiers was but that no on the senior officials were on the helicopter and officials were siding information siding initial information of course could change. which of course could change. our correspondence are headed to scene and as to the scene presently and as we can see, that's the potomac river in and i'm river in washington and i'm pleased we can also to pleased we can also speak to jeffrey thomas, aviation jeffrey themas. aviatien' . . , . . ~ . geoffrey, can —

expert, geoffrey, can you — apologies, geoffrey has left us but we have chad bet we have chad kendall �* of bet we have chad kendall. �* of former professor of aviation, former pilot was flown out aircraft that was involved in the crash. can you give me an idea on how ean yeergivermeah idea en hew this airport is? clearly, busy this airport is? clearly, a very, very busy airport in the us. ., , a very, very busy airport in the us-_ a very, very busy airport in theus. ., , , _ ., m u 7 7 dc éhd all the washington, dc and all the that had things thatwe�*ve’ had happened with new recently with a new presidential in, hundreds occurrin - 7 occurring daily at airport 7 airportand 7 airport and airport that i that airportand airpprt that i conserve that as n as mar-f- “flats- res w-s f's a”, '" s very ean censcrée�*ha�*a�*cafflr " ” ’ very the thereeghty. very hearthe ww ww ww w w given the airspace overall given the proximity to and s7=z the northeast 7 a just the northeast corridor, a lot of air traffic going to that airspace every day. tide

lot of air traffic going to that airspace every day. here z -7:7 here the extensive search see here the extensive search and rescue clearly and rescue operation, clearly many, many different agencies involved in can give us a many, many different agencies involv about can give us a many, many different agencies involv about flight ve us a many, many different agencies involv about flight path a many, many different agencies involv about flight path in sense about the flight path in the area and i understand that the area and ! enderstand that "”’"" ”” of these based on many of these based on vision as well but must very as populated as space? -- airspace- _ populated as space? -- airspace. there - populated as space? -- | airspace. there i very populated as space? -- airspace. there very tight 5—7 —f of their working with corridors of their working with to our plans and out of to get our plans in and out of this and proximity to this airport and proximity to other airports around in the northeast corridor and all the involved without airspace involved without typically on a clear night with minimal weather considerations at play, they rely visual at play, they rely on visual approaches and visual at play, they rely on visual approaches with lisual at play, they rely on visual approaches with the al at play, they rely on visual approaches with the river so when you're coming into that . as a pilot, traffic airport as a pilot, traffic control asked pilots to report river inside _ih the river inside the river is very to see at night,

very easy to see at night, all the city lights given all the city lights around the river and so once = report the river inside and 7: pilots responsible for the pilots were responsible for tracking to the river, descending at appropriate descent rate and altitude to iand ithis;shingtan. iand washington. and a 7777777a7l7o7t7 7 777777777a7l7o7t7of 7 7777 777a7l7o7t7of 7 77on —e pilot and 7 pilot and the 7 pilot and the gltitudes the pilot and the altitudes that are restricted on, a lot that are restricted on. a lot visuals of the pilot set out gfzyjsuals .of the pilot set out given the special use 777 7 -7 777 that's around airspace, that's around washington, reagan airport, airspace, that's around wash are >n, reagan airport, airspace, that's around wash are prohibited airport, airspace, that's around wash are prohibited areas 't, airspace, that's around wash are prohibited areas from the capitol and the around the capitol and the white house so lot of white house and so a lot of at play, flying into vigitante’at ptay, flying inte airport vigitante’at ptay, ftying inte airport that's why a this airport and that's why a lot of airlines have designated special 7 special authorisatio77n 'ust -iven 'ust - iven that just given that pilots sneert je=t§iseh that sum more sneert je=tae=n that sum more cash than any more sneert je=tae=n that sum more before an any more sneert je=tae=n that sum more before the ny more sneert je=tae=n that sum more before the cloud >re experience before the cloud to land at this airport for the first time and so again, busy a lot of things airspace, a lot of things happening, a lot of traffic, happening. a let ef. traffic. a of use as space, a

777 of communications happen lot of communications happen air traffic control. with air traffic control. must be a lot of the spaces in the world. we've also, as i .a i e world. we've also, as i _ page forl world. we've also, as i i _ page for our world. we've also, as i - _ page for our viewers all7 77777all7th7e777777 77 7 77 77777all7th7e7la'fe7st7 77 7 77 all the latest information ata at a recent post at currently at a recent post at airlines as the top american airlines as the top at this national airlines at this national airport and more than a quarter of the travel of the passengers travel reagan national fly on lhrozugh reagan national fly on airlines, most of american airlines',"the'r'npst at commercial carrier we understand 7 we understand that the more than 6 airlines have more than 6 million passengers at the airport for 12 months airport for the 12 months ended october, according to i ragga ss 75:7 seests i7hs ts statistics, i h7s7thssf77 seests i7hs ts statistics, we government statistics, we also this recent cbs had this recent report from cbs three us soldiers board the three us soldiers on board the black hawk helicopter, can i ask you, it's a very, very cold this time of year in 7if 7 if that if that would washington, if that would have impacted things all? washington, if that would have impacted things i all? impacted things at all? whether is at -la impacted things at all? whether is at play right — impacted things at all? whether is at play right now, _ impacted things at all? whether is at play right now, many - is at play right new; many �* search rescue

hamper search and rescue efforts but search rescue are ye , ye areye use ood are serif. sen; good at teams are very, very good at they do, appears be teams are very, very good at they do, ap this; be teams are very, very good at they do, ap this event weatherfretated te this e�*eant w w w ww .. ww certainly factors a re �*factors are amply 7 �*factors are amply land what the intestigation will start 7 will start one 7 and that will start one search and rescue is completed, the will take into investigation will take into consideration whether but consideration whether but they take on can take on consideration operations and a traffic control and all the other 11mm i imaine, contribute factors. ef—ezjf 'ust how factors. sf—ggif 'ust how bus this factors. ef—ezjf 'ust how bus this airsace to just how busy this airspace is, the fact that there is defence operations going with pentagon 7 7 pentagon being 7 7 pentagon being so 7 pentagon being so close alon77gside 7 alon77gside so7many going alongside so many commercial operations, how do work at, 7 7effort overall co—ordinated effort overall between �*traffic and between air traffic control and aircraft and aircraft, just across river from 7washington the river from washington reagan, large landing in

aircraft, the side washington airport is the pentagon, reagan airport is the pentagon, a lot of transit helicopter aircraft military civilian aircraft military and civilian aircraft, they are helicopter aircraft, they are around that and around around that airport and around the river and so, you can see a the river and so. you can see a co—ordinated good co—ordinated effort between traffic control and the that all the traffic that surrounded airport. all the traffic that surrounded airort. . �* all the traffic that surrounded airort. ., �* , 215" .;;":: e 215" .;;":: h m received a statement from president trump, i will read that, he said, i've been on the 7 on the terrible 7 briefed on the terrible accident which tookjust briefed on the terrible accident which took just took at reagan national place at reagan national airport, may god bless our souls, thank you for the work being done by incredible work being done by our first incredible work being done by ourfirst responders, i am monitoring the situation and provide details as they provide more details as they arise, the statement from trump that brief7ed7on the just 7777 7 77 7 at just at reagan just at reagan national maybless 7 7 7777n71a7y7 7777b7les7s7t7hose7 airport, may god bless those souls. and incredible souls. and thanks incredible being done by the

saying 7 saying that his responders saying that his the situation and monitoring the'sitpa�*tion and details as they arise provide details as they arise and a quick recap for those of and a quick recapfer those of was that myjust be joining you was that myjust bejeining we have reports of an airline check american airline cheek? ' ' with helicopter american airline cheek? ' ' ... r with helicopter in colliding with helicopter in dc, this helicopter we understand was a hawk understand was a black hawk helicopter being operated by understand was a black hawk hel military, ing operated by understand was a black hawk hel military, this )perated by the military, this american flight was to airlines flight was flying to wichita in according 7 according to according to our 7 according to our us �*7cbs, that7she partner cbs, that she was carrying 60 and four members on board, 7 m7embers on b77oard, with tree mcms=r= en searet eith"" ”' ' .... army soldiers tree hh=hhs=r= eh. searet eith"" ”' ' .... army soldiers on board, three army soldiers on board, we understand the jet has we understand that the jet has gone down into potomac gone down into the potomac river in the number river in washington;the number casualties is as yet of casualties is as yet unknown. but investigations are by both fea and continuing by both the fea and the ntsb. this is ongoing the ntsb. this is an ongoing situation that we to we are continuing to monitor. we have heard from president trump

have heard’frorn’ president tru m p lots of changes, have heard’frorn’ president tru m p lots of cha nges, if havehe’ard’frorn’president trump lots of changes, if i aci'rfi'i

the unfortunate 7 the unfortunate thing 7 states, the unfortunate thing is that accidents and is that accidents happen. and what will of this will e the result of the ss ths fssslt sf ths 777 from the ntsb investigation from the ntsb and the fea and military into how can things improved to keep 7 -7e likethis 77 7 7 7 iiie thi7sfro7m 77 like this from happening the like this from happening the future. 5 from happening in the future. we also have a as in the future. we also have a _ as well. _ in the future. we also have a i _ as well, i updated statement as e" an updated ... . ~ . ~ .. american statement from american airlines, our is airlinesrour'concern is for passengers that the passengers that they have said the american eagle flight was from to 5342 was from wichita to and in washington and involved in accident at essay, this was by psa flight was operated by psa airlines, 60 passengers and four crew members were on board the aircraft and for the aircraft and concerns for the aircraft and concerns for the passengers and crew is on board and are in contact with 7ar71d7as7si7s7tirig777 guithgj’itiegs and assisting with response guithgj’itiegsand assisting with response efforts. emergency'response efforts. ease have emergency'response efforts. said have also a number — published a number — phone which is 8006798215 number which is 8006798215 for anyone who that anyone who believes that they have loved members — loved

have loved members—toyed ones board flight 5342 which from in 77 7777fro7m in wichita, coming from kansas in wichita, kansas, rather, the number coming from kansas in wichita, kanse in rather, the number coming from kansas in wichita, kanse in caseer, the number coming from kansas in wichita, kanse in case it the number coming from kansas in wichita, kanse in case it is ie number coming from kansas in wichita, kanse in case it is of number coming from kansas in wichita, kanse in case it is of use ber coming from kansas in wichita, kanse in case it is of use is tr again in case it is of use is for those who 7th7ey 7 they may they may have a family believe they may have a family member on this has to american airlines posted to american airlines official x account at american they said they will air and they said they will continue to update any fire that so is that platform so that is @americanair on their expert account. we've been hearing from president trump said fromwpresident trumprho said are fully briefed on the they are fully briefed on the terrible accident, may god bless her soul, he said in a thank you for the work 77 7 7work being 7 77 7 7work being done by incredible work being done by first responders and says our first responders and says that i monitoring the situation provide 7 details and provide more details as arrive.

the american flight going down in washington, dc. the american flight going down in we bbc jton, dc. the american flight going down in we bbc news )c. the american flight going down in we bbc news and you are watching bbc news and i please welcome our viewers on pbs newshour. at the we pbs newshour. at the moment we are covering a developing situation which is the flight crush in washington, dc, and american allans has american allans flat has collided in midair with a settie'ee'in mietai'rwith e �* in washington, dc copter in washington, dc according to the federal aviation administration stop we understand were 60 understand there were 60 passengers and all crew members boar7d chat ”safe 7 7c7ha7t7whi7ch 7 ”safe 7 7c7ha7t7whi7ch had 7 on board the chat which had come from kansas and was due to on board the chat which had comef dc. kansas and was due to on board the chat which had comef dc. it insas and was due to on board the chat which had comef dc. it has 5 and was due to on board the chat which had comef dc. it has collided s due to land in dc. it has collided a black hawk military with a black hawk military helicopter and we understand army soldiers were on three tis ermy seldters’wereen ” the exact three tis ermy seldters’wereen w the exact �* of board. the exact number of casualties if is not casualties if any is not yet we understand federa7l aviation the federal aviation as well as the administration as well as the ntsb, are