Solution : https://service.sap.com/sap/support/notes/1116190 (SAP Service marketplace login required)
Key words : 
consistency checks + block corruptions365481 block corruptions023345 consistency check, maxdb error diagnosis -> corrupt data pages026837 maxdb, oracle database maxdb/sap db839333 faq, corrupt database objects technically accessible, database/tablespace/datafile/block, review current maintenance plans, database consistency check, separate sap support message, perform consistency checks, internal database structures access
Related Notes : 
       
| 1597910 | Handling of database corruptions on SQL Server | 
| 839333 | FAQ: SAP MaxDB error diagnosis -> Corrupt data pages | 
| 540463 | FAQ: Consistency Checks + Block Corruptions | 
| 365481 | Block corruptions | 
| 26837 | MaxDB: Data corruption, error -9026/-9028 | 
| 23345 | Consistency check of ORACLE database |