CAPE CANAVERAL, Fla. -- In Orbiter Processing Facility-3 at NASA's Kennedy Space Center in Florida, space shuttle main engine No. 3 is installed in shuttle Discovery. The engine was removed to give technicians time to replace a suspect turbopump in main engine No. 1, which encountered an issue during torque testing. Discovery and its STS-133 crew are targeted to deliver the Express Logistics Carrier-4 filled with external payloads and experiments, as well as critical spare components to the International Space Station later this year. Photo credit: NASA_Jack Pfaller
Photographer NASA_Jack Pfaller
Album Discovery