Three months ago I took my plane to Aviation Services at KSGU. At that time I needed an oil change. While it was at the FBO the weather was bad so I purchased a new propeller and Magnetos. The work was done and paid for two months ago. My problem is that I have not been able to get my logbooks back. I have made over several phone calls and visited the Aviation Services 5 times. I am unable to motivate the owner to give my my logbooks back. Is it legal to fly without having your logbooks in your possession? My annual is due at the end of the month. Can an annual be done without logbooks? Can the FAA help in any way?