Repairman certificate?

[herman pahls]

I have the repairman certificate on the Kitfox I fly since I built it.
If I buy a damaged Kitfox am I legally able to do the major repair and have the work signed off by an A&P or does it need to be an A&I.
Or does an A&P have to do the repairs since I would not have the repairman certificate?
Is this a gray area?
I assume that if I totally rebuilt the aircraft and completed 51% of the construction I could qualify for the repairman certificate but would need to fly off the 40 hours.

Thanks for considering my questions.
The answers will determine if I will consider buying a previously flying project.
Herman

[Av8r3400]

You can do any maintenance or modifications to an Experimental certificated plane that you do not have the repairman's certificate for.

You will need to have an A&P sign off the annual condition inspection every year.

[WISDAN]

AV8r is correct!

[Lion8]

This subject has me in a quandary. I built my own engine mount, installed a new engine, about the same weight and HP as the original. All new wiring, New panel, new landing gear. I checked with a couple DAR's and the FAR. What they said is that all I need to do is a log book entry and phase one testing. I cannot find anything in the FAR that is in conflict with this. I know I have to do the phase one testing but my question is, how much and do I have to get a new A/W certificate? The A/W certificate is 'unlimited'.

[Av8r3400]

Once an airworthiness certificate is issued it stays with the airframe until the airframe is deregistered (destroyed).

If they told you phase one, I would consider that to be 40 hours for a non-certified style engine and mounting system.

[HighWing]

Herman,
I would check this out with your local FSDO. As I understand it, we can do anything on our amateur built airplane, but need a certificate number when we sign off an Annual Condition Inspection. However there are some things we can do that are considered Major Modifications - such things as a new engine, etc. In that case it triggers a phase one test period which to my understanding is five hours after which it is signed off. I don't know if you can sign it off or if it needs the holder of the original Repairman Certificate or an A&P.