History

Past service disruptions and maintenance events

26 March – 2 April 1990

No incidents

All systems operated normally during this period

19–26 March 1990

No incidents

All systems operated normally during this period

12–19 March 1990

No incidents

All systems operated normally during this period

5–12 March 1990

No incidents

All systems operated normally during this period

26 February – 5 March 1990

No incidents

All systems operated normally during this period