History

Past service disruptions and maintenance events

29 September – 6 October 1975

No incidents

All systems operated normally during this period

22–29 September 1975

No incidents

All systems operated normally during this period

15–22 September 1975

No incidents

All systems operated normally during this period

8–15 September 1975

No incidents

All systems operated normally during this period

1–8 September 1975

No incidents

All systems operated normally during this period