What to know about the NTSB and the investigation into the DC plane cash National Transportation Safety Board (NTSB) investigators examine cockpit voice recorder and flight data recorder recovered from the American Airlines passenger jet that crashed with an Army helicopter Wednesday night near Washington, D.C, Thursday, Jan.30, 2024. (NTSB via AP)
Police and coast guard boats are seen around a wreckage site in the Potomac River from Ronald Reagan Washington National Airport, Thursday, Jan. 30, 2025, in Arlington, Va. (AP Photo/Jose Luis Magana)
National Transportation Safety Board Chair Jennifer Homendy speaks during a press conference at Ronald Reagan Washington National Airport, Thursday, Jan. 30, 2025, in Arlington, Va., as board members look on. (AP Photo/Stephanie Scarbrough)
Search and rescue efforts are seen around a wreckage site in the Potomac River from Ronald Reagan Washington National Airport, early Thursday morning, Jan. 30, 2025, in Arlington, Va. (AP Photo/Mark Schiefelbein)
National Transportation Safety Board (NTSB) investigators examine cockpit voice recorder and flight data recorder recovered from the American Airlines passenger jet that crashed with an Army helicopter Wednesday night near Washington, D.C, Thursday, Jan.30, 2024. (NTSB via AP)
National Transportation Safety Board (NTSB) investigators examine cockpit voice recorder and flight data recorder recovered from the American Airlines passenger jet that crashed with an Army helicopter Wednesday night near Washington, D.C, Thursday, Jan.30, 2024. (NTSB via AP)
National Transportation Safety Board (NTSB) investigators examine cockpit voice recorder and flight data recorder recovered from the American Airlines passenger jet that crashed with an Army helicopter Wednesday night near Washington, D.C, Thursday, Jan.30, 2024. (NTSB via AP)