Operations in Routing

I want develop a report which gives the list of current operations in a routing (CA02)

I know the flow is MAPL >PLKO >PLAS-PLNKN-->PLPO

But the table PLPO gives a list of all the operations, even if they are deleted and not present in CA02.

The table PLAS has a deletion indicator. If I take all the nodes (PLAS-PLNKN) which do not have a deletion indicator and pass them to PLPO, I see few operations present in PLPO which are not in CA02.

I want to find only those operations which are present in CA02.

What is the procedure for that?