The Trump administration has named Robert L. Sumwalt as vice chairman of the National Transportation Safety Board.
Sunwalt will replace as vice chairman Bella Dinh-Zarr, whose duties in that position ended this week.
Dinh-Varr had served as acting chairman since March 16 and remains a board member.
The NTSB has five members, all of whom are nominated by the president and confirmed by the Senate to serve five-year terms.
The NTSB also said that it was 50 years ago this week that it conducted its first investigation, a probe of a plane crash at Lexington, Kentucky, on April 3, 1967.
The board has since issued more than 2,400 safety recommendations for railroads, more than 200 recommendations in intermodal transportation, and several thousand additional recommendations for other modes of transportation.