History
Past service disruptions and maintenance events
25 October – 1 November 1976
✨
No incidents
All systems operated normally during this period
18–25 October 1976
✨
No incidents
All systems operated normally during this period
11–18 October 1976
✨
No incidents
All systems operated normally during this period
4–11 October 1976
✨
No incidents
All systems operated normally during this period
27 September – 4 October 1976
✨
No incidents
All systems operated normally during this period