Bernie RV7
Member
Cracking of wing aft spar web at the inboard aileron hinge bracket attach rivets
http://www.vansaircraft.com/pdf/sb16-03-28.pdf
http://www.vansaircraft.com/pdf/sb16-03-28.pdf
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It would be nice to receive an "inspect before further flight" by an email notice. Not that I'm asking for more SB's.
Is this a first for Vans? SB notes that there is a charge if you need parts.
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.
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.
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
Question from the SB, am I reading it correctly that if your wings are built and you have no visible cracking then you disregard but continue to inspect on an annual basis?
NOTE: Completion of the modifications in this service bulletin as a preventative measure (prior to cracks being detected) on wings that have been fully assembled is not recommended
being a non builder if cracks are found on the aileron hinge brackets on the 10 it looks like a labor intensive repair. anyone guess how many hours of labor required?
Alan
N668G
RV 10
Would it be possible to get the thread title amended to include the SB number? Might aid future searches.
Thanks
When doing your condition inspection, you should really be going to Van's SB webpage, not hear to look for SB's.
That's why you are making the drill guide using the bracket as a template and then making very careful measurements and drilling from the outside to stop the cracks from propagating any further. Take your time and read the SB, or talk to someone who can explain it. You REALLY want to be careful here as you are drilling on the spar.
Vic
1 1/2 hours for one plane Vic? You're padding the job.....
Then again, maybe it takes on longer on the "Heavy Iron
Is it safe to assume this SB will be a non issue for new kits not shipped/ordered yet.
Paul, the ailerons have to come off, and the flaps have to be disconnected on the the 10. And since they are primary flight controls, they get double-checked when reinstalling.
Vic
I'm assuming you wouldn't generally remove these during a condition inspection, so this will add some critical work to every condition inspection. Or do you remove yours normally?
I'm waiting to see how Van's will respond to my question about providing these parts to new wing kits purchasers (I just received mine in March and I don't have the new parts in my inventory). I'm hoping they will issue these parts to be fitted as part of the initial build for post-SB kits.