Lower door sills cracked

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air2jjs
Posts: 12
Joined: Wed Dec 20, 2023 11:24 am
Name: Jim
Location: Senoia Georgia
Aircraft Type: C140
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Lower door sills cracked

Post by air2jjs »

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.
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6643
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Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
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Re: Lower door sills cracked

Post by 6643 »

A picture is worth 1000 words...

How to post photos
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6183
Posts: 379
Joined: Tue May 01, 2018 7:00 am
Name: Mike Smith
Location: Florida
Aircraft Type: 140A (2) 1949 & 1950
Occupation-Interests: Retired aerial power line patrol pilot for Gulf Power Co. CFIA, CFII, MEI
120-140 Assoc. Florida Rep. N9633A & N9688A
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Re: Lower door sills cracked

Post by 6183 »

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!
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4004
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Name: Edd
Location: KFGU TN
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Re: Lower door sills cracked

Post by 4004 »

Jim, IIRC David Lowe has an approved procedure for repairing these, possibly this will trigger Mike or John C memory.
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6183
Posts: 379
Joined: Tue May 01, 2018 7:00 am
Name: Mike Smith
Location: Florida
Aircraft Type: 140A (2) 1949 & 1950
Occupation-Interests: Retired aerial power line patrol pilot for Gulf Power Co. CFIA, CFII, MEI
120-140 Assoc. Florida Rep. N9633A & N9688A
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Re: Lower door sills cracked

Post by 6183 »

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.
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air2jjs
Posts: 12
Joined: Wed Dec 20, 2023 11:24 am
Name: Jim
Location: Senoia Georgia
Aircraft Type: C140
Occupation-Interests: Mechanic, airline pilot, aviation and community food pantry volunteer.
Contact:
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Re: Lower door sills cracked

Post by air2jjs »

I’m working on adding a picture,,, but it’s saying the file is too large. Working on reducing.
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air2jjs
Posts: 12
Joined: Wed Dec 20, 2023 11:24 am
Name: Jim
Location: Senoia Georgia
Aircraft Type: C140
Occupation-Interests: Mechanic, airline pilot, aviation and community food pantry volunteer.
Contact:
Contact air2jjs

Re: Lower door sills cracked

Post by air2jjs »

Image Hopefully, this is clear on the location.
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