CGI outage?

[#1]

There seems to have been an unavailability of the ccgi server from 1:40 to 3:50 this morning.
There is a hole in my stats during this period. Then the clock times of the servers were synchronised as successive 'hits' were timed at:
[tt]03:51
03:52
04:56
03:57
04:58
04:55
05:00
05:09
04:09
04:12
04:16
04:20 [/tt]
I can't find any service status messages or any other information predicting/reporting this.
Does anyone else keep logs that they can check?
Tony

[#2]

Hi Tony,
There was a problem raised by nightshift at around 2:45am Saturday morning (49974). Apologies for the lack of Service Status.
The servers failed in the load balancer and the hosts were not accessible. They were rebooted an hour or two later.