Solution : https://service.sap.com/sap/support/notes/300588 (SAP Service marketplace login required)
Key words : 
change history date          section     short description------------------------------------------------------------------------mar/03/2006, car '-xvf /qopt/<volid>/data/<archive>, step 'method execution'                     error message, current r3trans dated july 18th, unpack car archive <car archive>, car -xvf /<cd_dir>/data/<archive>, tp import ax4k014073 <sid> client000you, previously imported spam/saint update, directory  /general/r3server/abap/note, check table nput               delete
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| 331057 | |
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| 214503 | Release strategy for PI and PI-A add-ons | 
| 181255 | Overview: Notes about R/3 Add-Ons PI and PI-A |