The RAIB will go over each element in detail, and will no doubt provide recommendations (if working improvements can be identified) to ensure this doesn't happen again.
Whilst recommendations aren't legally enforceable, should a similar incident happen again and it is more catastrophic - then anyone in a dock would look pretty negligent if they are questioned that they knew of an issue but did nothing to mitigate it.
The recommendations maybe to TOCs on the process of attachment/detachment, or to review how and when brake tests are done - they will decide if these are feasible contributors or not (ie unfeasible to drive the stock 90% of the journey to then do a brake test as this could be higher risk). Could also be to DfT or ORR to instigate devices on all LHCS to include some form of failsafe device (again whether or not if this is feasible for shunting ops etc,.)
now this is a live investigation I personally cannot see how it is useful for any of us to comment on what system or process, may or may not been done correctly, or what they underlying causes maybe as it is purely speculation, I will flag this to a mod and see if the discussion can be put on hold until any updates are provided.
Whilst recommendations aren't legally enforceable, should a similar incident happen again and it is more catastrophic - then anyone in a dock would look pretty negligent if they are questioned that they knew of an issue but did nothing to mitigate it.
The recommendations maybe to TOCs on the process of attachment/detachment, or to review how and when brake tests are done - they will decide if these are feasible contributors or not (ie unfeasible to drive the stock 90% of the journey to then do a brake test as this could be higher risk). Could also be to DfT or ORR to instigate devices on all LHCS to include some form of failsafe device (again whether or not if this is feasible for shunting ops etc,.)
now this is a live investigation I personally cannot see how it is useful for any of us to comment on what system or process, may or may not been done correctly, or what they underlying causes maybe as it is purely speculation, I will flag this to a mod and see if the discussion can be put on hold until any updates are provided.