Help with Pilot Info

Looking for additional information on Luftwaffen-Oberleutnant Otto Vandieken. This is what I found so far in my search:

Luftwaffen-Oberleutnant Otto Vandieken (born 28.10.1908) who belonged to the 12. Staffel/Transportgeschwader 3 as a squadron leader and was stationed near Zaporozhye (Ukraine) on 7.24.1943 supplying the "boiler" in Stalingrad. Was killed while in transport to Crimea on 29.02.1944 and was buried in Tiraspol. He was flying a JU52/3m. Crew aboard that died:
Gefr Hohe, Arthur, +
Uffz Köhn, Werner, +
Fw Otto, Gustav, +
Olt Vandieken, Otto, +
Awards won: German cross in gold

I'm looking for detailed loss records of how the plane was loss, any personnel records, awards, pretty much any additional info.