Breakdown Analysis Vs MTBR/MTTR Analysis

Hi,
I have created one equipment. Start date for that is 28.04.2010. After that, I have created 3 breakdown notifications. Based on that, I have created orders & completed fully. Now I am trying to run both the reports like MTBR/MTTR Analysis & Breakdown Analysis.
Results:
MTBR/MTTR Analysis:
Total Breakdowns: 3
Total Downtime: 62 hours
MTTR: 20.67 hours
MTBR: 219.33 hours
Time between repairs: 658 hours
Breakdown Analysis:
Actual Breakdown: 2
MTTR: 12 hours
MTBR: 252 Hours
Why this difference between these 2 analysis. Can you please explain.
Regards,
Maheswaran.

Hi Narasimhan,
Thank you for prompt reply. I have checked all the dates as well for overlapping. But there is nothing like that.
This is for your information:
1st Notification:
Start Date: 04.05.2010 Start Time: 10.00.00 AM
End Date: 06.05.2010 End Time: 00.00.00
2nd Notification:
Start Date: 15.05.2010 Start Time: 10.00.00 AM
End Date: 15.05.2010 End Time: 20.00.00
3rd Notification:
Start Date: 27.05.2010 Start Time: 10.00.00 AM
End Date: 28.05.2010 End Time: 00.00.00
There is no overlapping also. But I dont know why. If there is any overlapping, in MTBR/MTTR analysis as well, result could be same if I am correct.
Please clarify.
Regards,
Maheswaran.

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BREAKDOWN ANALYSIS V/S MTTR-MTBR ANALYSIS

Dear Friends,
I want to know what is the difference between MTTR-MTBR analysis and Breakdown analysis?
T-code for Breakdown Analysis is MCI7 in Standard analysis but this shows the MTTR-MTBR Analysis then if this is the MTTR-MTBR Analysis, then how can we find out the actual breakdown analysis from sap?
Thanks in advance

HI,
Suppose take an equipment K3001 -compressor
It fails 2 times this month.
Then Breakdown is 2.
MTBF - is Mean time between failure
The running hour between these two breakdown is MTBF For ex: 150 hr
MTTR - is Mean time to repair.
After Breakdown the time you take to repair and make it operable is MTTR for ex: 8 hr
MCJB & MCJC - MTTR -MTBF report

Weekly Breakdown Analysis

Dear All,
We have MCI7 report where we can have monthly breakdown analysis but here my requirement is, I want to have report on Weekly Breakdown analysis.
To get the Weekly Breakdown analysis we can change the update period for info structure S070 to Week.
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Now my question is, is it advisable to change the update period?
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Hello everyone in plant maintenance report i am not able to get breakdown analysis report. Kindly suggest me is there any config part i m missing.
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Hope the links below should be helpful
Breakdown Analysis Report in PM
Breakdown Analysis MCI7 report
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MTTR and MTBR (Breakdown analysis report mci7) in PM.

Hi all,
this is regarding pm issue.
in mci7(ie MTTR and MTBR report) iam unable to get the required results for certain equipments.
ie it is showing very high values.
please guide me in this regard.
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santosh.

Dear Maheswaran,
as per your post iam sending the following information.
1. What is the start up date?
Start up date for Equipment 1&2 : 1-4-2006
Start up date for Equipment 3 : 30-11-2004
2 Go to IW29, give the input for Breakdown notification type & get the list of notifications. From that, give the number of notifications created, breakdown duration for each notification (Check for Breakdown check box in those notifications & give that particular number)
In IW29 i found following
NOCO Status 6 nos
OSNO status 1 no
NOPR status 6 nos
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NOCO--1.42h
NOCO--0.13h
NOCO-- 1h
NOPR-- 2h
NOCO-- 0.81h
NOPR-- 0.82h
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4) in mci7 i used to give date and equipment no as input.
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In MCI4, MCI5 ,MCI7 we can not select specified date to check analysis (only month option is available). Please advice is there any other way to find day wise analysis or need to develop the Z repot.
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Yogesh

Dear,
What kind of analysis you want to do against the breakdown down ?
Can you explain more ?
Because In MTBF MTTR you can get on hourly basis also you can get analysis as per catalog codes through IW69 etc.cost you can get from iw 39
AM

Problem in MCI7 - PMIS: Breakdown Analysis .

Dear Expert ,
Pl help in above report analysis. I had feed more than 20 notification of breakdown by selecting breakdown tick in notification with differend date . but No data exists for chosen selection massage come. Even I selecting Daily in OMOS for S070. The MTTR/ MTBF come when I feed MCJB.
Thanks in advance.
Avi.

Dear Sir ,
Thanks for prompt reply.
I checked that Update group is 26 & Infor structure shows status Active. Now I will take care for change the Split period , I selected it D with Updating as a Asychronous updating (2 ).
But still prob not solved . I saw all notification are TACO with Breakdown tick selected .
Pl help in more details.
Avi

Breakdown analysis report MCI7

Dear Experts,
I created a break down notification for an equipment installed under a functional location and completed the notification after entering the breakdown hours with breakdown indicator checked. Now if i run the MCI7 report with the functional location of the equipment, it does not give a break down analysis. Is it the way it usually responds or there are some additional settings we need to do?
Please let me know
Thanks,
Boby

Please ensure that the 'Startup date' field in the Equipment Master (Header tab) is filled. When there is only one Breakdown notification on a particular equipment and the 'startup date' is not filled, you will not get MCI7 report, because the first notification will be consumed as the 'startup date'. As soon as you fill this field, the MCI7 report starts, even if this only notification is created/completed before filling the field.
Further you may go through the thread below:
[MCI7|Re: Breakdown reports]
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Jogeswara Rao

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

PMIS : MTTR/MTBR - Equipment

Hi Experts,
I want to know the data in PMIS : MTTR/MTBR - Equipment, but after input equipment, there are no data record. I also do set the breakdown indicator check box in the notification and also enter malfunction start date and mallfunction end date and in SPRO setting, creation of notification type I have to give update group -26 but the result is still no data.
How Should I do to get the data in in PMIS : MTTR/MTBR - Equipment?thx for the great answer.
Best Regrads,
Bernardus Jalu

Check this thread, you may get some clue.
Breakdown analysis report (MCI7)
Are you getting any details in Breakdown Analysis report (MCI7)?

MTTR and MTBR

CAN ANY ONE TELL ME HOW TO CALCULATE MTBR
my update status is 26,
start up date of equip= 01.08.2011
1st break d d = 10.08.2011
break hours = 10 hours
2nd break d d= 20.08.2011
breakd hours = 5 hours
when i execute ME17 result is MTTR=7.5, MTBR =229
problem is that 229 this is a value of system but when i manually calculate the MTBR result is completely different
PLEASE TELL ME IN BRIEF HOW I CALCULATE SO THAT I CAN GET RIGHT VALUE MANUALLY (BY MY HAND)

MTTR and MTBR
MTTR= Mean time to repair
MTBR= Mean time between repair
Example = Compressor
Start-up date of compressor = 01.08.2011
1st Breakdown = 10.08.2011
Break down Duration = 10 hours
Time =   08:00:00 to 18:00:00
2nd Breakdown = 20.08.2011
Breakdown Duration = 5 hours
Time = 12:00:00 to 17:00:00
MTTR=   sum of total breakdown hours                                                                                .                   Total no. of breakdowns
MTTR = (10+5)/2 = 7.5
MTBR = (Total Running Hours Till Last Breakdown - (N-1) Breakdown duration) / N                                                .                             .                                                                                (N means total no. of Break down)
Total Running Hours = (Notification Start date - Equipment Start date)*24
                                                                            +
                                            (Remaining hours till last breakdown not start)
VERY Important: in this example the last breakdown is on 20.08.2011 and breakdown start at 12:00:00 ou2019clock at noon time, I mean to say the hours between the 00:00:00 to 12:00:00, before breakdown start is 12 hours . this 12 hours or hours before the breakdown start , many people forget to add this in Total Running Hours.
Total Running Hours = (20.08.2011 - 01.08.2011)*24 + 12 hours (hours between the 00:00:00 to 12:00:00, before breakdown start)
                                     = (20-01)*24 + 12
                                     = (19*24) + 12
                                     = 468 hours
MTBR =   468 - 10 ( N-1 means leave last breakdown, sum of duration of all remains breakdown) / 2                               .
MTBR = 229 hours
Pankaj Yadav

Breakdown history ?

Dear Guru
Actually we are getting the down time report thro MCJB,MCJC . But let me one thing the system is calculating the total hours instead of objects oper. hrs.
Suppose we have some spare pumps it is running 5 hrs/day, then while breakdown analysing the same SAP providing answer is correct?
In same case continious industry production depends the objects efficiency also. So iam not seen the efficiency(like ex: pumps, gearbox,engine and some m/c) calculation thro SAP.
Please flow ur ideas abt this
Regards
Thenna

hi thenna arasu
i think you can get the OEE through production planning ( iam not sure) for this you have to create an equipment and assign to the production work center. for detail you can consult PP consultant
you can also manually calcualte the OEE provided you have the data
OEE
OEE takes into account all three OEE Factors, and is calculated as:
OEE = Availability x Performance x Quality
Availability
Availability takes into account Down Time Loss, and is calculated as:
Availability = Operating Time / Planned Production Time
Performance
Performance takes into account Speed Loss, and is calculated as:
Performance = Ideal Cycle Time / (Operating Time / Total Pieces)
Ideal Cycle Time is the minimum cycle time that your process can be expected to achieve in optimal circumstances. It is sometimes called Design Cycle Time, Theoretical Cycle Time or Nameplate Capacity.
Since Run Rate is the reciprocal of Cycle Time, Performance can also be calculated as:
Performance = (Total Pieces / Operating Time) / Ideal Run Rate
Performance is capped at 100%, to ensure that if an error is made in specifying the Ideal Cycle Time or Ideal Run Rate the effect on OEE will be limited.
Quality
Quality takes into account Quality Loss, and is calculated as:
Quality = Good Pieces / Total Pieces
regards
thyagarajan

Breakdown details based on the cause, damage on equipemnts

Dear all
We have one requirements with users. Presently we have the Breakdown analysis report, there we can see the equipment, date, object, damage, activities, downtime hours in text.
For this presently the Input is equipment or planner group, work center , date .
But users want objects, damage, cause will be input according to this they wants to collect the data like
equipment, date, object, damage, activities, downtime hours in ouput.
Please have some idea

Hi,
You need to define customised info structure for this.Then you need to pull together all these objects, damage, cause as characteristics into same field catalog.This will be Z field catalog and with this you need to define your customised info structure.This will append existing communication structure for reporting and used for report data updation in customised info structure.After this you need to define updating definitions to update info structure regularly.
at last you need to do statistical data set up for old data then normal data updation will happen.This is how standard SAP reports work.
Regds,
atul

Breakdown report

Hi PM Guru's,
Need a report that takes list of equipments / FLs as input for a maintenance plant and shows the breakdown trend for a period of say 15 years and corresponding repair cost incurred during that year.
for example : i should see for a equipment the breakdowns for period between 1995-2010 and for every year the no of breakdown's and repair cost in that year spread for entire 15 years.
Thanks

I am unclear what you require is it a report for all maintenance carried out or just for breakdowns.
Breakdown information is held on the notification where the financial information on cost of repairs and regular maintenance is on the order.
For breakdown analysis go to the PM Information system MCI7 transaction
For cost analysis go to the PM information system MCI8 transaction and search by Functional location or Equipment with month and year ranges. You have the option to switch the drill down to monthly once the report is displayed.
hope this helps
Jim

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Hi, team in my client ,they want breakdown analysis. They identified formula breakdown hours/ total avialable hours. What will be the total available hours. How can i achieve this at object type. Class and equipment level. And one more here in my case, we have machines like welding machines, cranes,jacks etc. I have to prepare maintenance plan. How should i prepare it. Thanx in advance.

The Available of machine = Total hour - ( Breakdown hours+Maintenance work Hours ). Calculate the breakdown hours from The notification or Breakdown order actual hour . The same case for other general maintenance work hours on the machine. Your total machine hours per day consider as 24. If you want to calculate the stoppages like shutdown also you can go for specific notification or measurement points.
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Breakdown Analysis Vs MTBR/MTTR Analysis

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