- First of all small correction. It is Custom report not Customizing report .
- There will not be special tables for custom reports like this one.
- QMEL / VIQMEL is the main table you have to make use of.
- The related info structure S070 also can not help you.
- You can not look towards system calculate MTTR/MTBR figures for your special requirements.
- You need to calculate on your own as per your Rules in a Z-program.
- For this you have to use standard fields Malfuction Start / End Dates and Times, but need to exclude the timing you do not want to be considered in these calculations.
- For this you and the ABAPer have to work together and devise a method.
- One example can be on every such equipment you create a measuring point (can be counter too) which reads IDLE TIME.
- So your calculation during a breakdown will exclude this duration.
- You can have such many ideas.
Best of Luck
KJogeswaraRao