The only information I have is my father is Michal/Michel Kreczak
I have been through the records that I have access to and cannot find any reference to this surname. The official RAF records of personnel serving in WWII can only be accessed by a relative of the person or persons being searched for. There is a charge of £30 for the search. Initially you need to write (not e-mail) the following address:
PMA (Sec) 1b (RAF)
Room 5 Building 248a
RAF Personnel Management Agency
Gloucester GL3 1EZ
Before you do this you might like to register at the following site:
This is a veterans bulletin board where you may be lucky enough to find someone who recognises the surname. It relies upon ex RAF staff recognising the name.
Sorry I cannot do any more without being a relative.
Best of luck