At about 9:45 p.m. Sunday, Nov. 10, following the completion of tanking
operations, NASA managers postponed the launch of Space Shuttle Endeavour
on mission STS-113 due to higher than allowable oxygen levels in the
orbiter’s mid body. Launch has been tentatively set for no earlier than
Monday, Nov. 18 so that technicians can troubleshoot and repair the leak.
Detanking of Endeavour’s external tank will begin early this morning, and
over the next two days, both the liquid hydrogen and liquid oxygen in the
Power Reactant Storage and Distribution System will be offloaded. 

Workers at the pad will gain access to the orbiter as early as Wednesday
and begin to investigate the exact location and possible cause of the
leak. At this time, managers do not feel that the P1 truss payload will
need to be removed for workers to make a repair. 

Due to the delay, the astronauts will return to Johnson Space Center in
Houston.