I found the gunner:
Record Number 76783826
Surname Zhdanov
Name Benjamin
Patronymic Alekseevich
Date of Birth __.__.1925
Birthplace of the Kuibyshev region., Pine-Solonetsky borough, pp. B. Solonet
Date and place of recruitment __.01.1943 Molotov RVC, the Kuibyshev region., Molotov rn
Last duty station CBF, 35 PSHAP BBC
Military rank ml. Sgt.
The reason for disposal of dead
Date of retirement 17/1/1944
Name of the source of information TSVMA
Number Fund Source Information 12
Room inventory source of information 5
Case Number information source 234
Original name found on
http://allaces.ru/cgi-bin/s2.cgi/sssr/fireram.dat and
http://uprava.maryno.net/Istoriy_voyni_18.htm (list of "fire taran"), and above data provided by OBD Memorial
Thanks again to Michal, the Russian writing of unit and pilot name allowed me to do the successful Google search.
Best regards
Laurent