Champion 7FC conversion

[Bucrepus150]

I've bought a 1958 7FC with c-90 engine. The previous owner had the gear converted from tricycle gear to tail wheel configuration. However there hasn't been 337 reflected in the documentation. The owner has passed, I'm not even sure who did the conversion. I've had people tell me field approval and others tell me I'll have to fill out 337 and get an IA/AP to sign off on the conversion.

So, the question is.
Has anyone got an example of a 337 with supporting drawings and wording of work?

Has anyone got detailed experience of the process to get this legal?

Regards

[Richard Murray]

I have a 7FC that was converted to a 7EC. I think I recall seeing the paperwork somewhere. I am at Oshkosh and will endeavor to look up what I believe I have when I return home.

[Paul Agaliotis]

I just did some research on this and all of it pointed to Form 337 modifications. I wasn't able to come up with any factory support for this modification.

Paul

[Richard Murray]

I sent you a PDF of the 337 used on my 7EC-conv (previously a 7FC) to your email.

It is very poorly detailed and only reverences Champion drawings and AC43-13-1 for guidance

If your A+P is having an issue with it please communicate and let's see if we can help.

[mdemello43]

I am looking at maybe doing the conversion as well. Seems like the 337 is the way to go for sure. Is it possible to share your most current and approved 337 for the FC TO EC conversion if anyone has one. Thank you for the help. Cheers

[Don Eide]

Once upon a time there was an STC for this conversion. Here is what I found.

Summary of Federal Aviation administrat.
Supplemental Type Certificates.
January 1998

American Champion Aircraft Corp.

Aircraft Make Model & T.C. NO. = 7FC T.C. A-759

STC NO. = SA374GL

Description. = Remove Tri-cycle landing gear and install main landing gear and tail wheel. Issued 12/16/79

ACO = GL

STC holder = King Aero Services, Inc
7170 East Main Stree
Reynoldsburg, Ohio 43068

THIS IS ALL I KNOW.
No, I did not use this. I had just finished my 7AC/7DC Conversion when I received this. Remember, this is old.

[mdemello43]

Thank you Don. I sent that STC to the IA to look it over.