History

Past service disruptions and maintenance events

26 December 2011 – 2 January 2012

No incidents

All systems operated normally during this period

31 January – 7 February 2011

No incidents

All systems operated normally during this period

24–31 January 2011

No incidents

All systems operated normally during this period

17–24 January 2011

No incidents

All systems operated normally during this period

10–17 January 2011

No incidents

All systems operated normally during this period

3–10 January 2011

No incidents

All systems operated normally during this period