Solution : https://service.sap.com/sap/support/notes/514569 (SAP Service marketplace login required)
Key words : 
abap short dump triggered, backorder processing update ale, reading temporary quantity assignments, sapapo library code section, post-persistent quantity assignments, persistent quantity assignments, -party availability check, /general/sapdb/lc_versions/74, full/apo3106/<platform>/, specifically interactive planning
Related Notes : 
       
| 498012 | Importing liveCache Version 7.4.2, APO 3.1 >=SP3 | 
| 487972 | Operating system parameterization of liveCache | 
| 452342 | Application terminates with message -602 or -8006 | 
| 395695 | Short dump during planning run with SQL erro -862 | 
| 325402 | dbadaslib/dbsdbslib: How do I apply a patch? |