MTTR , MTBR, break down analysis reports

Hello ,
I am new to PM module. I want to understand basic concept of MTTR and MTBR and the SAP config. required to get the above metioned reports in SAP.
It will be a great help if some one can elaborate steps required in config. and prerequisites to fetch the reports from the scratch.
Related links, documents will also be a great help for me.
Thanks

Hi AR1,
There are three cases which are important for the breakdown analysis. These are represented in the following diagram, which displays two reported breakdowns in each case.
Three Cases for Breakdown Analysis
Key Figures for Downtime
The key figures for downtime comprise the following figures:
u2022 Downtime entered/Time To Repair
u2022 Mean Time to Repair
The average duration of a machine breakdown, MTTR (Mean Time To Repair), is calculated from the individual history of a piece of equipment. This gives the following formula:
The key figure MTTR is calculated in hours.
First breakdown 10 hours
Second breakdown 05 hours
Number of breakdowns 02
MTTR = 10 + 5 / 2 = 7.5 hours
To calculate the key figure Mean Time To Repair, in the breakdown analysis (information structure S070) the effective breakdowns and the number of effective breakdowns are taken into account. In all other analyses (and the underlying information structures) the noted breakdown duration and the number of noted breakdowns are taken into account.
Key Figures for Duration Between Machine Breakdowns
The key figures for the duration between machine breakdowns comprise the following ratios:
u2022 Time between Repair
u2022 Mean Time between Repair
The average duration between two machine breakdowns, MTBR for short (Average Time between Repair), is calculated from the individual history of the equipment. This gives the following formula:
The key figure MTBR is calculated in hours.
The following example shows how the MTBR is calculated:
Acquisition date of pump A 01.01.94
First breakdown 10.01.94
Downtime 10 hours
Second breakdown 20.01.94
Downtime 5 hours
Number of breakdowns 2
MTBR = (19 * 24 - 10) / 2 or X + Y (hr) / 2
= (456 - 10) / 2 or (216 + 240 - 10) / 2
= 223 hours
Example: Average Duration Between Two Machine Breakdowns (MTBR)
Hope it may help to you
Regards
Srinivas

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Hello Mr Subrahmanyam,
When you are saying that the Equipment is in Breakdown, it may happen that the whols FLock could be considered in Break down, but not necessary,
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Hello Mr Subrahmanyam,
When you are saying that the Equipment is in Breakdown, it may happen that the whols FLock could be considered in Break down, but not necessary,
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Dear Friends,
I want to know what is the difference between MTTR-MTBR analysis and Breakdown analysis?
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Thanks in advance

HI,
Suppose take an equipment K3001 -compressor
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Jana

Hello Mr Subrahmanyam,
When you are saying that the Equipment is in Breakdown, it may happen that the whols FLock could be considered in Break down, but not necessary,
say we take an Example of a Work Shop, where Mechanical Workshop is the Functional Location and it has N no of Equipments like Lath, Grinding m/c, Welding M/c, Shaper Etc.... in this case can you please tell me if only one of the above mentioned Equipment is under Break down can the Whole Mechanical Workshop be termed as under Shut down.
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Hope I am able to clarify.
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Hi deepak
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MTTR , MTBR, break down analysis reports

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