History
Past service disruptions and maintenance events
28 July – 4 August 1975
✨
No incidents
All systems operated normally during this period
21–28 July 1975
✨
No incidents
All systems operated normally during this period
14–21 July 1975
✨
No incidents
All systems operated normally during this period
7–14 July 1975
✨
No incidents
All systems operated normally during this period
30 June – 7 July 1975
✨
No incidents
All systems operated normally during this period