WASHINGTON, D.C. (KSNW) - On the heels of a preliminary National Transportation Safety Board report on the collision of Flight 5342 and an Army helicopter that killed 67 people in Washington, D.C. in December, senators had questions at a subcommittee hearing Thursday. "Fifty-seven days ago, our n ation witnessed the first major U.S. commercial passenger flight crash in nearly 16 years," Senator Jerry Moran (R-Kan.) said. "Families had their loved ones taken from them in an instant. Children lost their parents. Husbands lost their wives." Moran was joined by other senators to question NTSB Chairman Jennifer Homendy and U.S. Army Aviation Director Brigadier General Matthew Braman. Chris Rocheleau, the acting administrator of the Federal Aviation Administration (FAA), also answered questions. "I just want to make it crystal clear that something was missed at the DCA crash. I take that seriously, I take that upon myself. I returned to the FAA just two months ago. Because I care about the national airspace system and the safety in the workforce," Rocheleau said. "I am dedicated to continuing that work. And I will continue to review and I mentioned before with the hot spots, working closely with NTSB, to learn what happened here and to make sure it never happens again." Senator Ed Markey (D-MA) also questioned Rocheleau, this time about a quote from Elon Musk. Markey said Musk questioned whether the public is at risk while flying. "I know we need new air traffic control facilities. I know we need that," Rocheleau said. Markey replied, "We are at risk. Is that what you are saying? You are agreeing with him that we are?" Rocheleau replied, " I'm saying the system needs modernization." Previously: Congress questions the FAA, US Army and NTSB over deadly midair collision in DC During the hearing, members of the Senate also questioned how the FAA had not noticed the number of close calls at Reagan National Airport in D.C., and why the issues had not been addressed before. Rocheleau said they have to do better and get smarter about how they use data. He also said the FAA is using artificial intelligence to identify safety threats at Reagan and other airports that also have heavy helicopter and airplane congestion. Doug Lane lost his wife and son on Flight 5342. He was closely watching the events of the subcommittee meeting on Thursday. "In terms of the ... it was very clear to us that there remain outstanding information requests to both the FAA and the Department of Defense," Lane said. "And for us, that's extremely disappointing. We are all willing to forgive errors that may have occurred in the past. These things happen, and it's unfortunate. And it had severe consequences." "But for us, what's not forgivable is to not be transparent," continued Lane. "So we really would like to see more transparency by the FAA and the Department of Defense. For me and for a lot of other families, family members, there is a feeling of powerless that obviously comes in a situation like this.  But for a lot of us, the ability to use our voice to bring about change has been something that has been helping us as a coping mechanism. And we think can potentially save the lives of other families so they don't have to go through the same thing." For more Kansas news, click here. Keep up with the latest breaking news by downloading our mobile app and signing up for our news email alerts. Sign up for our Storm Track 3 Weather app by clicking here. ...read more read less