Swapping lycoming to conti

Pre-War Aeroncas
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shorty
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Swapping lycoming to conti

Post by shorty » Sun May 08, 2016 08:19

What must be done (paperwork) to do the swap? 1939 chief
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Shorty

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hangerash
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Re: Swapping lycoming to conti

Post by hangerash » Mon May 09, 2016 07:27

Find someone who has completed the conversion and use their approval as approved data, if possible. Fill out a 337 for the engine change and make a logbook entry in the aircraft log. The engine log will also note the installation and indicated tach time when installed. This will require an IA to inspect and approve the work.

65-LA TCDS A-702 http://www.airweb.faa.gov/Regulatory_an ... /A-702.pdf

65-CA TCDS A-675 http://www.airweb.faa.gov/Regulatory_an ... ev%208.pdf
Richard

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shorty
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Re: Swapping lycoming to conti

Post by shorty » Tue May 17, 2016 19:50

That's what I was afraid of. 2 different type certs, and lotsa hoops to jump through.
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Shorty

Paul Agaliotis
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Re: Swapping lycoming to conti

Post by Paul Agaliotis » Wed May 18, 2016 00:08

Shorty,
I would approach it as a Major Alteration to the Type Certificate and don't even bring up changing the Model type. You can use all of the 65CA parts to make the swap but it will always be a 65LA.
Fill out the 337 listing the parts needed for change and submit it. Don't try to increase gross weight or change performance/operation.
Paul
Mailing Adress : Paul Agaliotis 2060 E. San Martin, San Martin,Calif. 95046

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hangerash
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Re: Swapping lycoming to conti

Post by hangerash » Wed May 18, 2016 03:26

Good advice Paul!
I was certain there was a simple solution. Glad you still read these posts.
Richard

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shorty
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Re: Swapping lycoming to conti

Post by shorty » Sat May 21, 2016 15:21

Great! Just want to get rid of the O-145, and put a Conti on it. Not try for any "extras".
So do the swap, submit 337, and W&B calc. (re-weigh the airplane) good to go?
Thanx
Shorty

Paul Agaliotis
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Re: Swapping lycoming to conti

Post by Paul Agaliotis » Mon May 23, 2016 16:56

Shorty,
First submit the 337 for the Major repair and when approved make the change.
Paul
Mailing Adress : Paul Agaliotis 2060 E. San Martin, San Martin,Calif. 95046

MikeB
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Re: Swapping lycoming to conti

Post by MikeB » Mon May 23, 2016 17:34

Shorty,
Paul is correct: do the necessary paperwork first. If you can find approved paperwork it helps a lot. Having been through several 337 approvals I've also found that doing a good documentation on what you're proposing helps including the "Instructions for Continued Airworthiness". I've never had one denied if it makes sense to the feds. I might be able to put you in contact with someone who has approved paperwork if you need. You can contact me by PM or mikejudyberg (at) gmail.com.

Mike

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