History
Past service disruptions and maintenance events
29 November – 6 December 1971
✨
No incidents
All systems operated normally during this period
22–29 November 1971
✨
No incidents
All systems operated normally during this period
15–22 November 1971
✨
No incidents
All systems operated normally during this period
8–15 November 1971
✨
No incidents
All systems operated normally during this period
1–8 November 1971
✨
No incidents
All systems operated normally during this period