deletions | additions       diff --git a/sectionPROPOSED_SCHE.tex b/sectionPROPOSED_SCHE.tex  index 54bae4c..ed99d88 100644  --- a/sectionPROPOSED_SCHE.tex  +++ b/sectionPROPOSED_SCHE.tex 
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The following example will illustrate the proposed scheduling:  A facility has 4000 hours {\em Scheduled User Time}.   A vacuum leak occurs in the storage ring and causes aseven day  beam outage. outage of seven days.  The management decides to declare these seven days to be shutdown and  to shorten the following shutdown in two weeks time by seven days to re-schedule all users. 
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In those cases it makes sense to do a separate accounting for the extra time:  the failures are counted separately like it would be another operation mode.  This allows to evaluate the accelerator reliability for the scheduled time and   the extra user time separately.