Solution : https://service.sap.com/sap/support/notes/79913 (SAP Service marketplace login required)
Summary : 
      This SAP Note addresses prerequisites and solutions for deploying SAP R/3 on an AS/400 with OS/400 V4.R1. The note identifies necessary PTFs required for installing and upgrading to ensure system functionality. Users must refer to IBM Information APAR II10553 for the latest Cumulative PTF Package updates and installation instructions. Key points involve confirming all listed PTFs are installed on the system before beginning installation or upgrade processes and performing a system restart, known as IPL, post-installation to ensure all PTFs are correctly applied. This note specifically pertains to OS/400 V4.R1; related notes are provided for other versions.
Key words : 
avoid error situations occurring, /400 additional key words os/400, ptf release level recommended, latest ptf versions recommended, ibm information apar ii10553, os/400          ---- corrections related, ibm ecs          ---- link, cumulative ptf package, latest ptf    ---- information, information apar ii10553
Related Notes : 
       
| 202169 | Additional Info: Upgrade to 4.6C - DB2/400 | 
| 178823 | Additional Information: Upgrade to 4.6B - DB2/400 | 
| 162117 | Additional Information: Upgrade to 4.6A - DB2/400 | 
| 144149 | AS/400: Comparing PTF level with IBM Information APAR | 
| 141661 | Additional Info: Upgrading to 4.5B DB2/400 | 
| 108377 | Additional Info: Upgrading to 4.5A DB2/400 | 
| 99379 | Additional Info: Upgrading to 4.0B DB2/400 | 
| 97816 | INST: 3.1I R/3 Installation on IBM AS/400 | 
| 86062 | Additional Info: Upgrading to 4.0A DB2/400 | 
| 84731 | AS/400: PTF check during installation or upgrade | 
| 83292 | Releases and PTFs for R/3 on AS/400 | 
| 82728 | AS/400: Installing 3.1G on OS/400 V4R1M0 | 
| 82601 | AS/400: Installing 3.0F on OS/400 V4R1M0 | 
| 74772 | Additional Info: Upgrading to 3.1H DB2/400 |