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01-31-2014, 09:27 PM
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Join Date: Jul 2013
Location: US
Posts: 2,930
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SB 14-01-31; RV-6, 7, 8
A new service bulletin came out today for cracks in the HS forward spar:
http://www.vansaircraft.com/pdf/sb014-01-31.pdf
Last edited by RV7A Flyer : 01-31-2014 at 09:41 PM.
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01-31-2014, 10:01 PM
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Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 3,346
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It doesn't say for the 9 models, but I am reading this pretty close and will see if it is looks like it may apply.
__________________
rockwoodrv9a
Williamston MI
O-320 D2A
Flying N376E
2023
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01-31-2014, 10:07 PM
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Join Date: Sep 2006
Location: Townsend, Montana
Posts: 3,180
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nine's have a different HS.
I just inspected my tail group last month...didn't see anything, but wonder if I gave it a close enough look.
__________________
Retired Dam guy. Life is good.
Brian, N155BKsold but bought back.
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01-31-2014, 10:13 PM
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Join Date: May 2006
Location: Texas
Posts: 2,231
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Clearly this is a -6, -7, -8 thing. And wow...
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01-31-2014, 10:13 PM
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Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419
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To do the mod looks painful but not horrible - mostly just the limited access for drilling out some of the rivets...
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01-31-2014, 10:28 PM
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Join Date: Jan 2010
Location: Port Angeles WA
Posts: 249
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It would be good to know how many of these cracks have occurred out of the many RV6,7,8 flying. Can we report in this thread the results of inspections as they occur?
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01-31-2014, 10:37 PM
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Join Date: Jul 2010
Location: Dubai
Posts: 137
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New SB
Wow. This SB is not a quick weekend afternoon fix, this seems to be a major deconstruction ,and then try to but it all back together again with very limited access to buck rivets. When I made my relieve notches in the front spar for the bend I made 100% sure that it was completly deburred and rounded at all corners to prevent cracks, just in this area. I am sure that my relieve notches are as smooth as it can be. Do I understand that this SB must be complied with even if there is no cracks, or is this a fix if a crack is detected. Maybe Alan from antisplat can produce a better way of doing this, like his fix for preventing cracks in the vertical stab front spar...
I can just see that to try and remove those rivets will leave a lot of folks with enlarged holes and a messed up HS that will be worse than before the fix.
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01-31-2014, 10:45 PM
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Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419
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From reading the SB, inspecting before further flight and then every annual seems fine. So if you don't have cracks and don't think you'll get them just doing that until a crack (possibly) shows up some year seems like a fine way to go...
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01-31-2014, 11:07 PM
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Join Date: Mar 2009
Location: Sydney, Australia
Posts: 618
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I'll be inspecting my RV7 tomorrow morning, will post results
Cheers
__________________
Eddie Seve
Sydney Australia
First Flight 16th July 2012
RV-7 Phase 2, 30 Oct 2012
1100 hrs Feb 2020
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02-01-2014, 01:19 AM
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Join Date: Dec 2005
Posts: 978
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Does anybody know of occurrences of this cracking i.e. who / what / why / when triggered this SB? I have one possible suspicion...
__________________
Andy
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