Solution : https://service.sap.com/sap/support/notes/86906 (SAP Service marketplace login required)
Key words : 
symptom upgrade phase diffexpmod terminates, update e071 set pgmid = ' imu', additional key words limu, 3-digitobject limu mess xx, advance correction b30k028884, object 'limu' 'mess', request sapkccr<rel>, trkorr = 'sapkccr<rel>', -digit character string, subsequent error occurs
Related Notes : 
       
| 145577 | Termination in phase DIFFEXP... with sap_dext | 
| 102950 | Additional Info: Upgrading to 3.1I DB2/400 | 
| 76604 | Additional Info: Upgrading to 3.1H | 
| 74772 | Additional Info: Upgrading to 3.1H DB2/400 |