SQL Server 2008 :: Query To Check Downtime In Production Lines

I'm trying to run a query to check the downtime in production lines, but if a line has assigned more than one cause for the downtime it repeat the info for each cause.

This is the code.

SELECT D.Line AS Line, D.ProductionLine AS ProductionLine, D.Shift AS Shift, D.DownTime, CONVERT(VARCHAR(10), D.DatePacked,101) AS DatePacked, AssignedDowntime, (D.DownTime - AssignedDowntime) AS NOASSIGNED,
R.Enviromental,R.Equipment, R.IT_Systems, R.Material_External,R.Quality,R.Material_Internal,
R.Method,R.PreProduction,R.People
FROM (
SELECT Line, Shift, DatePacked, SUM(Cast(Downtime AS INT)) AS AssignedDowntime,

[Code] ....

I'm expecting that if is more than one "Down Reason "it will include in the same line. At this moment if i have more than one reason it create a line for each one for example:

If i have a total Downtime of 50 minutes and they are assigned 10 for itequipment, 30 by testequipment and 10 assigned to quality issues i will have and output like this:

Line Total_Downttime By itequipment by_testequipment bypeopleissues byquality
line1 50 0 30 0 0
line1 50 10 0 0 0
line1 50 0 0 0 10

What i want is to have a output like this:

Line Total_Downttime By itequipment by_testequipment bypeopleissues byquality
line1 50 10 30 0 10

All in one line.