History

Past service disruptions and maintenance events

27 March – 3 April 1989

No incidents

All systems operated normally during this period

20–27 March 1989

No incidents

All systems operated normally during this period

13–20 March 1989

No incidents

All systems operated normally during this period

6–13 March 1989

No incidents

All systems operated normally during this period

27 February – 6 March 1989

No incidents

All systems operated normally during this period