APAR fix on AIX 53tl9

We have tried to install an APAR fix IZ20298 on a AIX test server. It is requiring a base level of bos.adt.prof of 5.3.0.0 I cannot find this file anywhere. I fould 5.3.0.1 and it still will not install without the base install. Any ideas where I can find bos.adt.prof 5.3.0.0?

The installable images are available from the AIX media and bos.adt.prof ist a subset of bos.adt.