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Problems Sending Packed Files Using FTP
Incident Summary

Problem Summary:
When sending a database file containing packed fields from an IBM iSeries system to the MVS, the packed fields do not transfer correctly (they appear to be translated and are unintelligible).

Resolution:
The transfer of packed/zoned fields between different platforms is not a supported function of FTP. However, because an MVS machine is inherently an EBCDIC machine, there is a work-around that often works. This work-around is to transfer the file in EBCDIC Block mode. However, you will likely eventually discover that this method also has problems.

If the data in the packed (or any special numeric format) field happens to contain a hex '15' character, that figure will be interpreted by the iSeries system as an End-of-Record indicator, resulting in a truncated record. This may also cause the file transfer to fail. To ensure good data integrity, special numeric formats should be changed to character fields prior to doing a file transfer with FTP.

References:
Refer to the following publication:

TCP/IP Configuration and Reference , SC41-5420