Referring to this line of yours, you know how to compute the equipment up-time linked to PP work center (VIQMEL-PPSID)
Note:I knew the link of PP work center with equipment.But i am not getting report.
Let this figure be A (hrs)
In VIQMEL table, the field 'AUSZT' gives the breakdown duration in Hrs. Call this a 'B'
The total Hrs will be A + B.
If you give the specifications to your technical person, it will be an easy development
OR
you can make yourself using SQVI or Infoset Query in Standard Area, in PRD client itself.
Jogeswara Rao K