NASA said in a statement that the launch of the SpaceX Crew-10 mission, which includes Russian cosmonaut Kirill Peskov, to the International Space Station has been postponed until 14 March.
Initially slated for 12 March, the takeoff was aborted due to "a hydraulic ground issue with the clamp arm on the transporter erector," according to a NASA webcast.
NASA rejected 13 March as a possible new launch date, given a forecast for strong wind and precipitation.
In addition to Peskov, it included two NASA astronauts - commander Anne McClain and pilot Nichole Ayers - and a mission specialist from the Japan Aerospace Exploration Agency, Takuya Onishi. The team was slated to relieve cosmonaut Alexander Gorbunov and astronauts Butch Wilmore and Suni Williams.
Roscosmos and NASA have a seat-swap agreement for flights to the ISS. Under the deal, some US astronauts fly to the ISS on Russia's Soyuz spacecraft, while some Russian cosmonauts fly on America's Crew Dragon capsules. Maxim Kharlamov, head of the Gagarin Cosmonaut Training Center, a subsidiary of Roscosmos, told TASS in January that the agreement was extended until the end of 2026.