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May 3, 2011

Probable Endeavour's final launch on May 10


Photo comes from Florida Today.

The penultimate flight of Shuttle serie...

More info @ NASA


Update :

During the countdown last Friday, engineers detected a failure in one of two heater circuits associated with Auxiliary Power Unit (APU-1) (heaters are required to keep the APUs’ hydrazine from freezing on orbit).

The failure appears to be a power problem within the aft load control assembly-2 (ALCA-2), a box of switches controlling power feeds. This box will be replaced but action could take 2 days or more, then the new ALCA-2 should be tested. NASA presumes that Endeavour's launch will occur no earlier than May 10.


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