via Space.com -
The shuttle construction mission, already extended by a day due to the discovery of a mysterious black grit that appears suspiciously like metal shavings caked within the gears of a starboard joint, hit yet another snag as the unfurling of one of the stations's solar arrays led to a torn wing!
"But during NASA mission control's unfurling of the relocated array truss segment, the right wing of the 4B solar array crinkled and tore on one edge. The array opposite of 4B, known as 2B, array without incident prior to 4B's unfurling."
No word yet on what the possible consequences of the mishap are, but it can't be good.