I would like to use one query to accomplish the following:

We have a table in MS SQL Server that is populated when an entry is made on a possible stolen vehicle. there is a status field that will have either a 5 or 7 and a temporary number in the ncic field that starts with 't'followed by 9 other random numbers. There are other records that have other statuses and don't have the 't' in the ncic field. I need to pull everything that doesn't have two records for a given temporary number like the following:

ncic status entry_date
t12312312 7 01/01/2007
t12312312 5 01/02/2007
t12312111 7 01/01/2007
t12312871 7 01/05/2007

the first two records should not appear in the result set because they have both a 7 and a 5, with a matching ncic number. I was thinking a subquery might be in order, otherwise, I'll have to do it in two steps.