The CCS was locking up. I was looking at fault 11835 when I noticed that the telescope RA was not updating. After rebooting it and CCSgate, it would run for about half an hour or so and then lock up. I called Bob, and after various tests, he came up and sorted it out by watching lights and listening to electrons traversing the core memory.
No time lost to this fault because of weather.
Bob's a legend. I bet you he will keep that machine going even after we replace it with a wristwatch. This is same Shaun and Bob in
The rescue last year and
here.