Hello!
51 MTAP lost two Bostons 18.4.1945. See loss list for the unit at:
http://www.bellabs.ru/51/Analysis/Losses_1.html
You can crunch it through Babelfish (Altavista) translator to get something out of it.
It seems one of the 18.4.45 Bostons (l-t Sushitskiy) was broken in crash landing "small Bryusterort" (small if the "м." stands for maliy) but crew survived.
The other Boston with l-t Koltashenko and crew dissappeared without news "southern part of the Baltic sea".
Hope this helps some,
Kari