History

Past service disruptions and maintenance events

26 December 1988 – 2 January 1989

No incidents

All systems operated normally during this period

19–26 December 1988

No incidents

All systems operated normally during this period

12–19 December 1988

No incidents

All systems operated normally during this period

5–12 December 1988

No incidents

All systems operated normally during this period

28 November – 5 December 1988

No incidents

All systems operated normally during this period