A310 QRH Bus Equipment List

[chasethehorizon]

What it the meaning of the two types of shading on lost systems?

If it doesn't specify "CM 1" lost or "CM 2 lost", but rather says "1 lost" or "2 lost" does that mean 1 system or both systems are lost as opposed to left seat/right seat?

[tubby linton]

There are numerous systems on the bus that are labelled Sys 1 and sys 2. For redundancy they are powered by different buses, for example pitch feel systems. Shading is used to show that the system is lost in that configuration. Some systems can be recovered by pressing the Land Recovery p/b