The first attached screenshot shows a time when the fast shutter was tested on July 11th, and seemed to be working fine and passed the tests.  In that case, the light on AS_A and AS_B was blocked for almost 10 seconds during the test. 

The second screenshot shows one of the many times that we tried to manually hit the run test button last night while sitting in ISC_LOCK state 120 (check as shutter). The light on AS_A and AS_B were only blocked for 10ms. 

So, this wasn't a false alarm, something about the shutter really wasn't working correctly last night. 

I've placed an ndscope template people can use to check on the fast shutter in /ligo/home/sheila.dwyer/ndscope/SYS/check_fast_shutter.yam The fast shutter full tests only run if it has been 48 hours since it last ran, so I think that Ryan should rerun the test manually this morning and check this template to convince ourselves that the shutter is really working now, before we continue with locking.