Late last week, Deepak and I precariously swapped the problematic and AOSEM brackets described in my previous alog:

https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=5499

I use the word precarious because the operation meant that tools, small fasteners, and hands were wedged inside of the suspension above the optic and extremely close to fragile wires in order to replace the 4 brackets.  This did not make me happy.  See some pictures below, but the collection is also posted  ResourceSpace: https://ligoimages.mit.edu/?r=23901