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  #21  
Old 02-19-2019, 06:58 PM
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scard scard is offline
 
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Originally Posted by Plummit View Post
What constitutes "new"? When did the steps change?

-Marc
I was thinking the same. I still feel like my RV9-A is "new" with only 2000+hrs on it. Cracked right step and all. I've been living on the wild side every time I climb into the pilot's seat for the last 8yrs(?). Sometimes it is good to "relieve stress", which a crack should be pretty good at.
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  #22  
Old 02-19-2019, 11:15 PM
lr172 lr172 is offline
 
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Originally Posted by TJCF16 View Post
The new steps you get from Van?s are beefed up with extra metal. Mine broke a couple of years back. The new ones are a lot different.
They finally addressed the issue on the two seat steps by adding a gusset. I don't believe this applied to the 10 step, which is different. Given that you don't have a 10, I am guessing you mistakenly assumed they are all the same.

Larry
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  #23  
Old 02-19-2019, 11:17 PM
lr172 lr172 is offline
 
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Originally Posted by scard View Post
I was thinking the same. I still feel like my RV9-A is "new" with only 2000+hrs on it. Cracked right step and all. I've been living on the wild side every time I climb into the pilot's seat for the last 8yrs(?). Sometimes it is good to "relieve stress", which a crack should be pretty good at.
It is usually the right step. While my right cracked before 100 hours; Left is going strong at 600 hours. This makes me believe it is a vibration or harmonic issue. My left is used 20 times more than the right and always heavier folks on the left.

Larry
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  #24  
Old 02-20-2019, 09:03 AM
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N941WR N941WR is offline
 
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Mark, did yours crack at the weld or about a 1/4" away from it, just outside the heat zone?
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  #25  
Old 02-20-2019, 09:31 AM
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Quote:
Originally Posted by Plummit View Post
What constitutes "new"? When did the steps change?

-Marc
Reinforced interior side of step. I have not seen an example of the actual step to down tube reinforced yet.

Example of cracked step requiring reinforcement.


*Photo from Russ' FB page https://www.facebook.com/russ.mccutcheon.7
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  #26  
Old 02-20-2019, 06:40 PM
MConner MConner is offline
 
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No,
My step broke at the weld. The photos you show are classic case of not stress relieving a weld. It makes the metal fail where it was heated to weld without heating a larger area to stress relieve it. I am sure that the weld was ground down to make it look good and left little or no weldment to take the stress.
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Last edited by MConner : 02-20-2019 at 08:08 PM.
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  #27  
Old 02-20-2019, 08:09 PM
MConner MConner is offline
 
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A fellow -10 enthusiast will post my photos soon.
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  #28  
Old 02-20-2019, 08:44 PM
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rvbuilder2002 rvbuilder2002 is offline
 
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Quote:
Originally Posted by MConner View Post
No,
My step broke at the weld. The photos you show are classic case of not stress relieving a weld. It makes the metal fail where it was heated to weld without heating a larger area to stress relieve it. I am sure that the weld was ground down to make it look good and left little or no weldment to take the stress.
Just to clarify, neither Vans or its welding vendors (in instances where the welded parts are outsourced) grind on welds before shipping welded parts to customers.
If you are certain that grinding was done, it likely occurred during the build process.
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  #29  
Old 02-20-2019, 09:17 PM
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Originally Posted by MConner View Post
A fellow -10 enthusiast will post my photos soon.
Pics posted to go along with discussion with Marks permission.






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EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF

"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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  #30  
Old 02-20-2019, 11:54 PM
MConner MConner is offline
 
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Thank you Carlos, if there was no grinding, then there was never any penetration on this weld. It was holding on by a thread.

This plane was built in 2011 and flown in the Phoenix desert until May 2018 when I bought it with 500 hours TT.
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