The launch of space shuttle Endeavour has been cancelled due to a hydrogen leak, NASA officials have announced. A gaseous hydrogen leak on a vent line for space shuttle Endeavour is postponing this morning's launch. The official scrub time was 12:26 a.m. EDT. Launch teams began draining Endeavour's external fuel tank of its liquid hydrogen and liquid oxygen at 12:06 a.m.
After the leak is assessed, shuttle managers plan to meet to discuss what steps to take next, including targeting a new launch date for Endeavour's STS-127 mission to the International Space Station. More on Twitter and Mission Status and NASA TV.
Since NADA will not be able to physically get to the Ground Umbilical Carrier Plate for 24 hours, NASA has decided to move the Mission Management Team meeting to Sunday at 2:00 pm eastern. There will be no meeting on Saturday. NASA has decided to do a 96-hour scrub turnaround plan (4 days) since NASA knows it will take at least that long to get back into launch configuration. There is still no new launch date set.
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