Neil,
734064 isnt one of the many associated with EP-LCE, so far!! and was first noted on the network 4/1/2011. It decodes to EP-PCD which I dont have anything on, possibility I suppose but nothing confirmed.
C05FE8 decodes to C-GKIH, Bell 412EP, c/n 36570 Which left the Canadian Register in March and went to UAE and is so far unidentified.
Regards
Alan