Solution : https://service.sap.com/sap/support/notes/1610465 (SAP Service marketplace login required)
Key words : 
program cl_rsddb_index================cp intentionally triggers, create master data indexes, standard master data access, data type = numc, sap netweaver bw 7, rare exceptional circumstances, master data, short dump, short text, error message
Related Notes : 
       
| 1636053 | Upgrade to SAP NetWeaver 7.30: BW server: Useful SAP Notes | 
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| 1625665 | InfoCube with BWA index inconsistent after InfoObject change |