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  #1  
Old 05-07-2016, 05:29 PM
Bernie RV7 Bernie RV7 is offline
 
Join Date: Mar 2007
Location: Melbourne, Australia
Posts: 42
Default New SB issued 6 May 2016 (SB16-03-28)

Cracking of wing aft spar web at the inboard aileron hinge bracket attach rivets

http://www.vansaircraft.com/pdf/sb16-03-28.pdf
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Last edited by Bernie RV7 : 05-07-2016 at 06:06 PM.
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  #2  
Old 05-07-2016, 05:50 PM
tgmillso tgmillso is offline
 
Join Date: Nov 2012
Location: Launceston, Tasmania, Australia
Posts: 841
Default Thanks

Really appreciate you posting this, as I'm just days away from riveting on my aileron hinge brackets. I'm sure there are others out there in a similar situation.
Cheers,
Tom.
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  #3  
Old 05-07-2016, 06:25 PM
Dean Pichon Dean Pichon is offline
 
Join Date: May 2006
Posts: 555
Default

What a disappointing development. Does anyone know how many reports of this type of cracking Van's received prior to issuing the SB?

It sure would be nice if Doug set some sort of database where people could report and share their findings as they execute the inspection portion of this SB. The data should be available fairly quickly given the direction to inspect before further flight.
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  #4  
Old 05-07-2016, 07:33 PM
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Steve Melton Steve Melton is online now
 
Join Date: Apr 2011
Location: Cincinnati, OH
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Default

It would be nice to receive an "inspect before further flight" by an email notice. Not that I'm asking for more SB's.
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Last edited by Steve Melton : 05-07-2016 at 07:35 PM.
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  #5  
Old 05-07-2016, 07:47 PM
Aggie78 Aggie78 is offline
 
Join Date: May 2014
Location: New Braunfels, Texas
Posts: 450
Default Concur!

Quote:
Originally Posted by Steve Melton View Post
It would be nice to receive an "inspect before further flight" by an email notice. Not that I'm asking for more SB's.
Steve,

I agree.

On another note, I posted up a message over on the General Discussion forum to drive folks over here.

I was just killing time on a Saturday night and rarely check this part of VAF. Would have been weeks before I'd seen it otherwise.

Pretty important SB to be buried off the main storefront, so I gave a heads-up.

Rob
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  #6  
Old 05-07-2016, 08:31 PM
BobTurner BobTurner is offline
 
Join Date: Dec 2011
Location: Livermore, CA
Posts: 7,857
Default $$$

Is this a first for Vans? SB notes that there is a charge if you need parts.
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  #7  
Old 05-07-2016, 08:49 PM
RV-4 RV-4 is offline
 
Join Date: Oct 2007
Location: St-Jerome,Quebec,Canada
Posts: 1,216
Thumbs up SB 16-03-28

Thank you Bernie for posting this, it is really appreciated...

''SB notes that there is a charge if you need parts. '' Amazing that we have to pay for parts to fix a design problems...

Bruno
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  #8  
Old 05-07-2016, 08:51 PM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,769
Default Welcome

Quote:
Originally Posted by BobTurner View Post
Is this a first for Vans? SB notes that there is a charge if you need parts.
Nope. Welcome to the club. Good news, the SB kits are usually inexpensive. It's the errors installing them that cost.
BTW, anyone notice the rivet on the bracket in the SB are installed backwards. I suspect most are done per Mil-Spec and installed with the factory side on the forward side of the aft spar. Drilling the shop side will be a bit more tricky.
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Last edited by wirejock : 05-07-2016 at 09:22 PM.
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  #9  
Old 05-07-2016, 10:52 PM
PCHunt PCHunt is offline
 
Join Date: Feb 2007
Location: San Diego, CA
Posts: 1,816
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Quote from SB: It is unlikely that RV-6/6A wings will be affected. If cracks are present in RV-6/6A aircraft, email Van’s Engineering Dept for instructions, with photos of the cracks, for a specific repair scheme.

Curiosity question. What is different about the -6/6A wing that makes it unlikely that cracks would occur?

I'm a non-builder.
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  #10  
Old 05-07-2016, 11:00 PM
Aggie78 Aggie78 is offline
 
Join Date: May 2014
Location: New Braunfels, Texas
Posts: 450
Default

Quote:
Originally Posted by PCHunt View Post
Quote from SB: It is unlikely that RV-6/6A wings will be affected. If cracks are present in RV-6/6A aircraft, email Van?s Engineering Dept for instructions, with photos of the cracks, for a specific repair scheme.

Curiosity question. What is different about the -6/6A wing that makes it unlikely that cracks would occur?

I'm a non-builder.
Another non-builder question....

What's causing the cracks that are being seen?

Assembly error? Fatigue? Something else?

Which wings are they happening on? QB? SB? Both?
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