History
Past service disruptions and maintenance events
31 March – 7 April 1975
✨
No incidents
All systems operated normally during this period
24–31 March 1975
✨
No incidents
All systems operated normally during this period
17–24 March 1975
✨
No incidents
All systems operated normally during this period
10–17 March 1975
✨
No incidents
All systems operated normally during this period
3–10 March 1975
✨
No incidents
All systems operated normally during this period
24 February – 3 March 1975
✨
No incidents
All systems operated normally during this period