Solution : https://service.sap.com/sap/support/notes/1166221 (SAP Service marketplace login required)
Key words : 
support package stack 12 + bi support package 14, bi support package 14, sap service marketplace, failed broadcasting settings, terms precalculation server, precalculation failed, precalculation server, precalculation reason, note bundles, notes relating
Related Notes : 
       
| 1298789 | BW/BI 7.X Precalculation - New installation methods | 
| 1298788 | BW/BI 7.X Precalculation - Pre-requisites | 
| 1276981 | Precalculation Server: Support for Excel 2007 file formats | 
| 1259442 | Precalculation Server: Support for Excel 2007 file formats | 
| 1236773 | BI7.X(7.10) Precalculation - General Information&Limitations | 
| 1170638 | Job name in trace for precalculation | 
| 1168191 | Load distribution on the precalculation server | 
| 1158721 | Log improvement - precalculation server | 
| 1156450 | Enhancement of message log in precalculation | 
| 1122403 | State variables in the precalculation server | 
| 1094799 | Corrections in the BEx Analyzer server runtime | 
| 1082617 | Preliminary calculation of Excel workbooks does not work | 
| 1074272 | Error in the precalculation server (read long text first) | 
| 1042498 | Precalculation 7.0 - Load balancing corrections with locks | 
| 1035427 | Precalculation Service - Load balancing corrections |