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ULA has delayed its next Atlas 5 launch to send a Cygnus cargo capsule to ISS until mid-April.
Gatens said NASA was now expecting the Cygnus to launch to the station no earlier than the middle of April. “The Orbital launch, the next launch, has slipped due to an investigation of a hydraulic leak in the booster engine compartment that’s in work,” she said. “There are some components being replaced. The investigation is going on and we’re currently targeting no earlier than, probably, a mid-April launch.”
ULA spokeswoman Jessica Rye said March 28 that a new launch date has not been set yet for the mission. “Additional information will be provided once testing to resolve the booster hydraulic issue is complete,” she said.
The launch was initially planned for mid-March. This delay has forced NASA to delay a spacewalk because it involves installing equipment that the Cygnus capsule is bringing to ISS.