The Cessna 120-140 Association Forum

So, this C140 Youth project is full of surprises.
As we go through the airframe, the squawk list continues to grow. We found both lower door sills cracked. Proximity is slightly aft but over the main gear attach. Maybe hard landing? Anyway, researching new parts with Univair as they have them listed. Notification of not in stock. My choices are to make a “nested” repair per AC 43.13 or fab a new part. Yes, I’m the A&P/IA on the project.

A picture is worth 1000 words...

How to post photos

Jim,

You might take a look at this page.
http://www.stevedold.com/aviation/c140/ ... /index.htm

Steve Dold who use to be in the Association some time ago posted a good slideshow of making repairs to lower door post cracks. Haven't heard from Steve in quite some time, but his pictures are a great help!

Jim, IIRC David Lowe has an approved procedure for repairing these, possibly this will trigger Mike or John C memory.

4004 wrote: ↑Mon Jan 22, 2024 11:22 pm Jim, IIRC David Lowe has an approved procedure for repairing these, possibly this will trigger Mike or John C memory.

Yes, thanks for mentioning that info.

I’m working on adding a picture,,, but it’s saying the file is too large. Working on reducing.

Hopefully, this is clear on the location.