05 November 2014
Orbital Sciences Corp. plans to re-engine its Antares launch vehicle and use one or two alternate launch vehicles initially to meet its International Space Station resupply commitments to NASA after last week’s launch failure with an Antares powered by two Aerojet Rocketdyne AJ-26 engines.

David Thompson, Orbital chairman and CEO, told analysts Wednesday the surplus Russian-built engines have a "fundamental reliability issue" and probably were responsible for the Oct. 28 mishap, which destroyed an Orbital Cygnus cargo vehicle loaded with 4,883 lb. of consumables, hardware and science equipment for the ISS.

See the full article at Aviation Week