Hallo Petra,
da musst diesen Command benutzen:

The creator of the new file will be the owner of it. This user will have the same authority to the new object as the owner of the parent directory has to the parent directory. The data authorities for *PUBLIC of the new object will be set to *NONE. The object authorities, however, will be inherited from the object authority *PUBLIC has to the parent directory. If applications require *PUBLIC to have data authority to the new object, a command similar to the following can be used:


CHGAUT OBJ(path-name) USER(*PUBLIC) DTAAUT(*RWX)