History
Past service disruptions and maintenance events
27 March – 3 April 1972
✨
No incidents
All systems operated normally during this period
20–27 March 1972
✨
No incidents
All systems operated normally during this period
13–20 March 1972
✨
No incidents
All systems operated normally during this period
6–13 March 1972
✨
No incidents
All systems operated normally during this period
28 February – 6 March 1972
✨
No incidents
All systems operated normally during this period