History
Past service disruptions and maintenance events
25 September – 2 October 1989
✨
No incidents
All systems operated normally during this period
18–25 September 1989
✨
No incidents
All systems operated normally during this period
11–18 September 1989
✨
No incidents
All systems operated normally during this period
4–11 September 1989
✨
No incidents
All systems operated normally during this period
28 August – 4 September 1989
✨
No incidents
All systems operated normally during this period