Query Comparisons

I have the following query below that I am trying to get working. What I want it to do is check for users who have sat a module and failed it and compare it to a table to check that they have not passed the module second time and report only those who have failed withg no passes. Query below.

SELECT DISTINCT dbo.PPS_SCOS.NAME, PPS_PRINCIPALS.NAME, pps_transcripts.date_created, score, max_score, status
FROM (dbo.PPS_SCOS JOIN dbo.PPS_TRANSCRIPTS ON dbo.PPS_SCOS.SCO_ID = dbo.PPS_TRANSCRIPTS.SCO_ID)
JOIN dbo.PPS_PRINCIPALS ON dbo.PPS_TRANSCRIPTS.PRINCIPAL_ID = dbo.PPS_PRINCIPALS.PRINCIPAL_ID
WHERE dbo.PPS_SCOS.NAME LIKE 'MTB-S001%'
AND PPS_PRINCIPALS.LOGIN LIKE '%test%'
AND dbo.PPS_TRANSCRIPTS.STATUS LIKE 'F'
AND PPS_TRANSCRIPTS.TICKET not like 'l-%'
AND dbo.PPS_PRINCIPALS.NAME NOT IN (
SELECT DISTINCT dbo.PPS_SCOS.NAME FROM (dbo.PPS_SCOS JOIN dbo.PPS_TRANSCRIPTS ON dbo.PPS_SCOS.SCO_ID = dbo.PPS_TRANSCRIPTS.SCO_ID)
JOIN dbo.PPS_PRINCIPALS ON dbo.PPS_TRANSCRIPTS.PRINCIPAL_ID = dbo.PPS_PRINCIPALS.PRINCIPAL_ID
WHERE dbo.PPS_TRANSCRIPTS.STATUS LIKE 'P'
AND dbo.PPS_SCOS.NAME LIKE 'MTB-S001%'
AND PPS_PRINCIPALS.LOGIN LIKE '%test%'
AND PPS_TRANSCRIPTS.TICKET not like 'l-%' )
ORDER BY pps_PRINCIPALS.NAME


Any help appreciated.

Thanks