North branch down : another e-beam magnets problem

RC informs 12h45 that the linac and the south branch are back in operation and performance is as before the issues with the A21 quadrupole.
However, during the access to XTL, additional manget problems occurred in the T4 and SA3 section.
Several magnet power supplies failed several times, MPS is working on this issue.
Additionally the SA3 burn-through radiation safety monitor was triggered which requires an onsite intervention by D3.
The downtime for SA1/SA3 is expected to last at least one hour.