As a user if you find that there is a missing fault for a train class, you can request for that fault to be created and added.
The process of requesting new fault (refer to step 1 - 9 below)
Go to Faults & Failure page by clicking on Faults & Failures button on the left side bar if you are in the homepage, or by hovering over Incident Assistance and selecting Faults & Failures from the drop down options
Click located near the top right corner of the page
Select the Train class for the new fault you want to request
Select the Category of the fault
Select the ServiceMode
And finally, the Description of Suggested Changes
Click Save
Another dialog will pop up confirming your changes, click Close
Request New Fault Dialog (refer to steps 4-7 above)
located near the top right corner of the page