Solution : https://service.sap.com/sap/support/notes/302602 (SAP Service marketplace login required)
Key words : 
r3tr fugr aiba r3tr fugr aibt r3tr fugr aqbm r3tr fugr aqbr r3tr fugr pabw r3tr fugr hrbw r3tr fugr hibw r3tr fugr ombw r3tr fugr lc05                        critical, importing  vii/ r3up key word  viii/  activities, ax4'  client = 000call 'r3trans imp, phase examines software products installed, directory  /general/r3server/abap/note, /    important general information  ii/   errors, phase pcon_<rel> error message, 2000_1_31h/2000_1_31i/2000_1_40b/2000_1_45b, import transport request ax4k014073, /usr/sap/trans/eps/
Related Notes : 
       
| 380257 | |
| 337576 | |
| 335618 | Upgrade to 4.6C SR1 with PI/PI-A 99/2000.1 | 
| 302601 | Upgr. to 3.1I/4.0B/4.5B/4.6B/4.6C with PI 2000.1 | 
| 302598 | Add-On Support Packages and CRTs for PI/PI-A 2000.1 | 
| 214503 | Release strategy for PI and PI-A add-ons | 
| 181255 | Overview: Notes about R/3 Add-Ons PI and PI-A |