Error 903 Severity 22 State 0

Hi,
I am working on a project where I have to corrupt the MS SqlServer database in a test environment and generate the following error in the NT Event log:

903 22 0 Could not find row in sysindexes for clustered
index on system catalog %ld in database ID %d. This index should existin
all databases. Run DBCC CHECKTABLE on sysindexes in the database.

Can some one tell me the sequence of steps that I need to follow to generate the above error messages.

I found one database corruption script in www.swynk.com. but that was not useful to generate the above error messages.

Please help.

Thanks
Sri