U.S. transportation safety investigators arrived on Thursday in Afghanistan to try and help determine why a civilian operated Boeing 747 cargo jet crashed on takeoff from Bagram Air Base , killing all seven crew aboard . Senior aviation investigator Tim LeBaron is leading a team from the National Transportation Safety Board ( NTSB ) that is working with the Federal Aviation Administration ( FAA ) and Boeing , which made the jumbo jet that crashed on Monday . The safety board is an independent government agency that investigates transportation accidents in the United States and often assists foreign governments in major cases , especially in air crashes involving a plane made by an American manufacturer . Afghanistan 's transportation ministry is leading the probe , the safety board said in a statement . A priority for crash investigators is to recover the jet 's `` black boxes , '' the flight data and cockpit voice recorders that could provide clues to a potential cause . The final moments of the doomed plane appear to have been captured by a dashboard camera inside a vehicle that was in the area . The approximately three-minute video shows what appears to be the jet starting its climb at 11:20 a.m. local time from the base . About 12 seconds into the video , it appears to stall , rolls from side to side , and drops . At 23 seconds , the plane crashes nose first into the ground off the side of the road , erupting into a ball of orange flame and black smoke . There is no immediate reaction from inside the vehicle . After the driver brings the vehicle equipped with the webcam to a halt , at 1:15 in the video , someone says , `` Oh , f*** ! '' At 1:33 , as the camera shows the vehicle moving once again , a noise can be heard -- possibly from a dog . Someone says , `` All right , come here . Shh ! Shh ! Shh ! '' The yelping stops ; the vehicle stops . At 2:13 in the video , the vehicle approaches the crash site and stops , the camera once again capturing thick black smoke . The video ends . `` That 's one dramatic fall out of the sky , '' said Arthur Rosenberg , a pilot , engineer and partner with the New York-based law firm Soberman & Rosenberg , which specializes in litigation stemming from plane crashes . `` It could have been a rock . '' He added , `` The plane just flat-out stalled . There 's absolutely no question about that . '' He said too much cargo in the rear of the plane is one of several possible causes . `` It looks to me like the plane pitched up ; the most likely cause would be too much load in the rear , '' he said in a telephone interview . `` The plane dropped below minimum controllable airspeed and started to roll . '' But , he added , `` It 's way too early to tell . '' CNN can not confirm the video 's authenticity . It bears the date 2013/02/01 , but date stamps can easily be inaccurate . Ill-fated Flight NCR102 was operated by National Airlines , which specializes in moving freight for the military and businesses . It also operates charter passenger service in the Middle East . U.S.-based National Air Cargo , the parent of National Airlines , confirmed the crash . It said the flight originated at Camp Bastian , a military base in Afghanistan , and was en route to Dubai , United Arab Emirates . It had stopped to refuel at Bagram , landing uneventfully . The cargo included five mine-resistant , ambush-protected vehicles being taken out of Afghanistan as part of the drawdown of U.S. forces , said Shirley Kaufman of National Air Cargo . The vehicles , usually referred to as MRAPs , can weigh from 12 tons to 24 tons , depending on the model , according to a 2011 Congressional Research Service report . That would mean a minimum of 60 tons , which is within its specifications , according to Boeing . `` Securing them is absolutely critical to safety , '' said Steven Wallace , former director of the FAA 's Accident Investigation Unit . It 's critical that the total weight be within the limit and that the plane be balanced , he said . `` When the airplane is rotated with the nose up , the cargo moves aft if it 's not properly secured , '' he said . National Air Cargo said the cargo was properly loaded and secured and had passed all necessary inspections prior to departing Camp Bastian . No additional cargo was added during the stop in Bagram and the aircraft 's cargo was again inspected prior to departure . The company would not speculate on a possible cause of the crash and said it was cooperating with investigators . Six of the crash victims were from Michigan , National said . They were identified as Brad Hasler , Jeremy Lipka , Jamie Brokaw , Rinku Summan , Michael Sheets and Gary Stockdale . The other victim , Timothy Garrett , was from Kentucky . Taliban spokesman Zabiullah Mujahid said his group shot down the aircraft and that `` several foreign soldiers were killed . '' That claim could not be verified . A number of Taliban claims of responsibility have proven false .
A video appears to show the 747 as it tries to take off from Bagram Airbase . `` That 's one dramatic fall out of the sky , '' an expert says . The plane was carrying seven crew members and cargo , the airline says . U.S. transportation safety investigators arrive in Afghanistan .