Yes I realise that this has come up before, and I have trawled through the various threads.
I have come to the conclusion that it is a moving target- many different layouts seem to have been used with different code letters shown, making it almost impossible to come up with a list of codes and their meanings.
I am trying to decipher a form AM 1180 dated 24-12-1944 for a lancaster that crashed just after take off.
It would seem that various codes have been struck i.e. aircraft type 2 is crossed out (from a choice of 1 to 17 followed by B F C FT +17) the B is crossed out. From this I assume type 2 is a lancaster and B is for bomber command. The list goes on.

Does anyone know if there is a source of reference. The pilots name is qouted but the crew is shown as 7 people in aircraft and under 'K' presume for killed.

Thanks in advance,
Paul H