ASM Online Service Planned Outage
Historic - 20:00, March 5th - 00:00, March 6th
In order to carry out essential system maintenance, ASM Online Services will be unavailable between Wednesday 5 March 2025 at 20:00 BST and Thursday 6 March 2025 at 00:00 BST.
During this time you will be unable to send and receive messages in Sequoia.
You can prepare your CDS declarations ready to send once the outage is complete but will not be able to view or prepare Safety & Security declarations or Transit Phase 5 movements so please retrieve any Transit documents you need prior to the outage.
To improve re-connection behaviour following this outage, please ensure that you are running version 5.16 (or higher) of Sequoia.
ASM apologise for any inconvenience this may cause.








