Problem with International Space Station

This is kinda scary and something you’d see in a sci-fi show. Astronauts were on a space walk yesterday when they discovered a joint needed to turn a set of solar power panels was filled with metal shavings.
“It’s quite clear that it’s metal-to-metal grating or something, and it’s widespread,” Tani said.
“Wow,” said his spacewalking partner, Scott Parazynski.
The shavings resembled small flakes and were clinging to the joint as if to a magnet, Tani said. “It looks like a dusty table that you’d want to dust at home,” he called down.