Solution : https://service.sap.com/sap/support/notes/567048 (SAP Service marketplace login required)
Key words : 
tp 'addtobuffer sapk620eud <sid> pf=/usr/sap/trans/bin/tp_domain_<sid>, tp 'import sapk620eud <sid> pf=/usr/sap/trans/bin/tp_domain_<sid>, sap system installation                      oct/20025 final installation steps                        aug/20036 troubleshooting                                  aug/2003+===================================================================+ 1, unicode basedsystems üüü iseries base operating system options 13, topics                                          date changed======                                          ============1 general information                              oct/20022 errors, '/qibm/proddata/os400/icu/data'qicu, document unicode sap web application server 6, pfl -dtransdir=/usr/sap/trans' 5, pfl dtransdir=/usr/sap/trans', directory /usr/sap/trans/data
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