History
Past service disruptions and maintenance events
26 January – 2 February 1981
✨
No incidents
All systems operated normally during this period
19–26 January 1981
✨
No incidents
All systems operated normally during this period
12–19 January 1981
✨
No incidents
All systems operated normally during this period
5–12 January 1981
✨
No incidents
All systems operated normally during this period
29 December 1980 – 5 January 1981
✨
No incidents
All systems operated normally during this period