Solution : https://service.sap.com/sap/support/notes/1566406 (SAP Service marketplace login required)
Key words : 
6051 - bad block scn6052 - bad objd6053 - bad segment id6054 - bad csc6055 - bad free list link6056 - bad itl scn6057 - bad # itls, sysdba  alter system dump datafile '<filename>' block <page number>, terms dbv block corruption reason, symptom dbv report errors related, solution run rman validate check, bad num_itls, transaction list count, oracle version 7 block format, oradebug setmypid  oradebug tracefile_nameexitsee, check code <checkcode>checkcode
Related Notes : 
       
| 23345 | Consistency check of ORACLE database |