Launch from Cape Canaveral (
KSC); landing on
Edwards
AFB.
The
launch was originally scheduled for 28. April 1989, but was scrubbed at T-31
seconds because of a problem with the liquid hydrogen recirculation pump on
Space Shuttle Main Engine (SSME) No. 1 and a vapor leak in the liquid hydrogen
recirculation line between the orbiter and external tank.
Main goal of
this mission was the deploying of Magellan/Venus radar mapper on flight day 1.
Several secondary payloads as Earth observation an photography, biology,
medicine and materials sciences.
One of five general purpose computers
(
GPC) failed in
orbit and was successfully replaced during the mission.