History
Past service disruptions and maintenance events
28 December 1987 – 4 January 1988
✨
No incidents
All systems operated normally during this period
21–28 December 1987
✨
No incidents
All systems operated normally during this period
14–21 December 1987
✨
No incidents
All systems operated normally during this period
7–14 December 1987
✨
No incidents
All systems operated normally during this period
30 November – 7 December 1987
✨
No incidents
All systems operated normally during this period