History
Past service disruptions and maintenance events
25 December 1972 – 1 January 1973
✨
No incidents
All systems operated normally during this period
31 January – 7 February 1972
✨
No incidents
All systems operated normally during this period
24–31 January 1972
✨
No incidents
All systems operated normally during this period
17–24 January 1972
✨
No incidents
All systems operated normally during this period
10–17 January 1972
✨
No incidents
All systems operated normally during this period
3–10 January 1972
✨
No incidents
All systems operated normally during this period