History
Past service disruptions and maintenance events
22 February – 1 March 1971
✨
No incidents
All systems operated normally during this period
15–22 February 1971
✨
No incidents
All systems operated normally during this period
8–15 February 1971
✨
No incidents
All systems operated normally during this period
1–8 February 1971
✨
No incidents
All systems operated normally during this period