Seconds before an Amtrak train flew off the tracks in Washington, the engineer told the crew they were traveling too fast, according to an early National Transportation Safety Board review of the crash that killed three people. 
 
 More than 70 people were injured in the Monday morning derailment, in which several train cars fell from a bridge and onto a highway in the city of DuPont, about 20 miles south of Tacoma, authorities said. The train was making the inaugural run of a new route aimed at cutting travel times and improving safety south of Tacoma. 
 
 Investigators begin analysis at the scene where an Amtrak passenger train derailed on a bridge over interstate highway I-5 in DuPont, Washington, on Dec. 18, 2017. Steve Dipaola / Reuters file 
 
 The results of the preliminary review, released on Friday, come from details gathered from an "event data recorder" and cameras mounted on the lead locomotive. The devices captured the crew's actions, their conversations and other information, the NTSB said. 
 
 The recordings included comments by the engineer about six seconds before the derailment about "an over speed condition," the NTSB said in a statement. Officials said earlier this week that the engineer was in a cab with a conductor and that the train's brakes were engaged automatically, not by the engineer. 
 
 The recording ended with the locomotive tilting and the crew bracing for impact, the statement said. 
 
 Related: Amtrak derailment: Train was traveling at 80 mph in 30-mph zone 
 
 The final recorded speed of the locomotive was 78 mph, which is within the limits for the approach to the crash location, but not the location itself, which followed a curve with a posted 30 mph speed limit, according to the NTSB. There's a sign noting the speed limit about two miles before the curve, the NTSB said. 
 
 The train was not equipped with positive train control, which can prevent derailments caused by excessive speed, officials have said. 
 
 Related: ‘Positive Train Control’ ordered by Congress, but not yet in place 
 
 The footage collected by the NTSB showed none of the crew using any personal electronic devices such as cellphones, the agency said. 
 
 The NTSB's full investigation of the crash is expected to take up to two years. ||||| PHILADELPHIA (AP) — In the moment the Amtrak train that derailed at a curve this week was supposed to be slowing down, it was accelerating, investigators said Thursday. 
 
 Investigators examine the scene of a deadly train wreck, Wednesday, May 13, 2015, in Philadelphia. Federal investigators arrived Wednesday to determine why an Amtrak train jumped the tracks in Tuesday... (Associated Press) 
 
 In this Aug. 21, 2007 photo, Amtrak assistant conductor, Brandon Bostian stands by as passengers board a train at the Amtrak station in St. Louis. Federal investigators have determined that an Amtrak... (Associated Press) 
 
 Amtrak assistant conductor, Brandon Bostian stands by as Sandra Palmer, center, says goodbye to her boyfriend, Clyde Simpson, before he boards the train at the Amtrak station in St. Louis. Federal investigators... (Associated Press) 
 
 Emergency personnel work at the scene of a deadly train derailment, Wednesday, May 13, 2015, in Philadelphia. The Amtrak train, headed to New York City, derailed and crashed in Philadelphia on Tuesday... (Associated Press) 
 
 As Philadelphia Mayor Michael Nutter, left, and Pennsylvania Gov. Tom Wolf, right, listen Amtrak CEO, Joseph Boardman expresses his sorrow near the site of a deadly train derailment Thursday, May 14,... (Associated Press) 
 
 Philadelphia Mayor Michael Nutter, center right, hugs Lori Dee Patterson, a nearby resident, after she handed him a cup of coffee after he spoke at a news conference near the scene of a deadly train derailment,... (Associated Press) 
 
 As Philadelphia Mayor Michael Nutter, left, listens Amtrak CEO, Joseph Boardman discusses Tuesday's deadly train derailment Thursday, May 14, 2015, in Philadelphia. An Amtrak train headed to New York... (Associated Press) 
 
 Emergency personnel walk near the scene of a deadly train wreck, Wednesday, May 13, 2015, in Philadelphia. An Amtrak train headed to New York City derailed and crashed in Philadelphia on Tuesday night.... (Associated Press) 
 
 Sen. Pat Toomey, center white shirt, Philadelphia Mayor Michael Nutter, center tan shirt, and Sen. Robert Casey, right blue shirt, tour the scene of a deadly train wreck, Wednesday, May 13, 2015, in Philadelphia.... (Associated Press) 
 
 How that came to happen has emerged as the central question surrounding the derailment, which killed eight people and sent more than 200 to hospitals Tuesday night in the nation's deadliest train wreck in nearly six years. 
 
 In the minute or so before the crash, the train sped up from 70 mph until it reached more than 100 mph at a sharp bend where the maximum speed is supposed to be 50 mph, National Transportation Safety Board member Robert Sumwalt said. It's unclear, Sumwalt said, whether the speed was increased manually by engineer Brandon Bostian, who grew up obsessed with trains. 
 
 Investigators have found no problems with the track, signals or locomotive. Sumwalt said the train, on a route from Washington to New York City, was on time as it left the station in Philadelphia a few minutes before the crash. 
 
 Investigators want to know why the train was going so fast. But Bostian refused to talk to police on Wednesday, authorities said. On Thursday, Sumwalt said Bostian had agreed to be interviewed by the NTSB and the meeting will take place in the next few days. 
 
 Separately, the Philadelphia district attorney's office said it was investigating and will decide whether to bring charges. And an Amtrak dispatcher injured in the crash filed what's apparently the first lawsuit stemming from it, blaming Amtrak and seeking at least $150,000 in damages, his lawyer said. 
 
 Amtrak, in a statement posted online by CEO Joseph Boardman, called the derailment "a terrible tragedy" and said it was cooperating fully with the NTSB and was responding with every resource it has available. 
 
 "Amtrak takes full responsibility and deeply apologizes for our role in this tragic event," it said. 
 
 Bostian's lawyer, Robert Goggin, told ABC News that his client suffered a concussion in the wreck, needed 15 staples in his head and has "absolutely no recollection" of the crash. Goggin also said Bostian, who lives in New York, had not been using his cellphone, drinking or using drugs. 
 
 As the death toll climbed on Thursday with the discovery of what was believed to be the last body in one of the mangled railcars, Mayor Michael Nutter again appeared to cast blame on Bostian, questioning why the train was going so fast. 
 
 "I don't think that any commonsense, rational person would think that it was OK to travel at that level of speed knowing that there was a pretty significant restriction on how fast you could go through that turn," Nutter said. 
 
 Officials believe they have accounted for all 243 passengers and crew members thought to have been aboard, Nutter said. Forty-three remained hospitalized Thursday, he said. 
 
 Amtrak, meanwhile, said limited train service between Philadelphia and New York should resume on Monday, with full service by Tuesday. Amtrak carries 11.6 million passengers a year along the Northeast Corridor, which runs between Washington and Boston. 
 
 Bostian was obsessed with trains while growing up, talked about them constantly and wanted to be an engineer or a conductor, friends said. 
 
 "He would go on vacation and bring back subway maps," said Stefanie McGee, a friend from Tennessee. "He would go places with his family, and he would talk about the trains instead of the places." 
 
 Bostian graduated from the University of Missouri-Columbia with a bachelor's in business administration and management in 2006. He became an Amtrak engineer in 2010, four years after landing a job as a conductor, according to his LinkedIn profile. 
 
 Old friends and college classmates described him in glowing terms. 
 
 "I have nothing but good things to say about Brandon," said Will Gust, who belonged to the Acacia fraternity with Bostian in college. "He is a very conscientious person, one of the most upstanding individuals that I know, just a really good quality person." 
 
 McGee, the friend who is now city clerk in Bostian's hometown of Bartlett, a suburb of Memphis, said he "talked about trains constantly" while growing up and always wanted to be an engineer or a conductor. 
 
 Bostian met up with college friends a few years ago in New York and told them he was working on trains. 
 
 "Oh, yeah, he loved his job," said Justin Scott, another fraternity member with Bostian. 
 
 On an online forum for train enthusiasts called trainorders.com, a user who signed at least two posts "Brandon Bostian" or simply "Brandon" commented on a wide range of industry issues, including safety. A couple of posts under the handle "bwb6df" lamented that railroads hadn't been fast enough to adopt positive train control, GPS-guided technology that can prevent trains from going over the speed limit. 
 
 "They have had nearly a hundred years of opportunity to implement SOME sort of system to mitigate human error, but with a few notable exceptions have failed to do so," the writer posted in 2011. The same user said in 2012: "It shouldn't take an act of Congress to get industry to adopt common-sense safety systems on their own." 
 
 It's unclear whether the author of the posts was Bostian. In a message posted Wednesday, the site's administrator refused to release any information, citing privacy reasons. 
 
 Amtrak has equipped most of its heavily used Northeast Corridor with positive train control, but it was not in operation along the section where the accident took place because it was still being tested, said Boardman, the CEO. 
 
 However, Boardman vowed on Thursday that the technology will be in operation along the entire Northeast Corridor by the end of 2015, the deadline set by Congress. 
 
 On Tuesday, the job Bostian loved so much had him operating Amtrak's Train 188 from Washington to New York. 
 
 "He remembers coming into the curve," said Goggin, his attorney. "He remembers attempting to reduce speed, and thereafter he was knocked out." 
 
 But Goggin said the engineer doesn't recall anything out of the ordinary and doesn't remember applying the emergency brakes, as investigators say was done. He said Bostian's cellphone was off and stored in his bag before the accident, as required. 
 
 Goggin said that his client "cooperated fully" with police and told them "everything that he knew," immediately consenting to a blood test and surrendering his cellphone. 
 
 Within hours of the wreck, Bostian's Facebook profile picture was changed to a black rectangle. 
 
 ___ 
 
 Kunzelman reported from Baton Rouge, Louisiana. Associated Press writers Heather Hollingsworth in Kansas City, Missouri, Adrian Sainz in Memphis, Tennessee, and Jennifer Peltz in New York contributed to this story.
– The engineer apparently knew the Amtrak train that derailed Monday in Washington state, killing three people and injuring more than 70, was going too fast. He just didn't know it in time. In a preliminary report, the National Transportation Safety Board states the engineer, who was in the cab with the conductor, commented on "an over speed condition" just six seconds before the crash, NBC News reports. It remains unclear why the train, the first run on a new route, was going nearly 80mph as it entered a 30mph zone. The NTSB review also found neither the conductor nor other crew were using cellphones or other personal electronic devices, as had been the case in previous crashes, according to the Los Angeles Times.