Thank you for the long response and help. Unfortunately it didn't help me..I killed tp and r3trans, then I logged as a <SID>adm, and performed tp R3l command. It starts to importing SAPIB74003, but it stops in random places each time when I reboot tp process (i.e. once it imports 22MB file to usr/trans/tmp, once 4MB, and once 14MB...). And there are no errors.. I also tried to reboot SAP instance, but it didn't help. Logs are changing at the beginning, but the they are not changing.
Regards,
Tomasz