History
Past service disruptions and maintenance events
27 November – 4 December 1939
✨
No incidents
All systems operated normally during this period
20–27 November 1939
✨
No incidents
All systems operated normally during this period
13–20 November 1939
✨
No incidents
All systems operated normally during this period
6–13 November 1939
✨
No incidents
All systems operated normally during this period
30 October – 6 November 1939
✨
No incidents
All systems operated normally during this period