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Old 02-15-2018, 04:42 PM
DeltaRomeo's Avatar
DeltaRomeo DeltaRomeo is offline
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Join Date: Jan 2005
Location: Highland Village, TX
Posts: 3,823
Exclamation SB 18-02-02 Potential cracking in the horizontal stabilator front spar

Issued today:

RV-12. Before further flight.

"Inspect stabilator front spar for cracks. If cracks are not present the aircraft may be returned to service until the next 100 hour or annual inspection, when this service bulletin should be performed before further flight. If cracks are found, complete this SB immediately. Kits under construction should perform this SB prior to stabilator attachment or first flight."
doug reeves.
Organ donor card signed (use anything you need).
RV-6 flying since '02.

Last edited by DeltaRomeo : 02-15-2018 at 05:04 PM.
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Old 02-15-2018, 05:01 PM
moosepileit moosepileit is offline
Join Date: Dec 2010
Location: Floyds Knobs, IN
Posts: 310
Default RV-12

Model RV-12
RV-6 N91GG, bought from builder.
O-320, slider, carb, mags, FP
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Old 02-15-2018, 08:21 PM
MrSparkle MrSparkle is offline
Join Date: Sep 2017
Location: San Antonio, Texas
Posts: 12
Default Inspection for cracks

I assume that the only way to inspect the stabilator's front spar for cracks is to remove the stabilator and the hinge brackets. Agree/disagree?

Ian Heritch
RV-12 N417E
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Old 02-15-2018, 09:21 PM
alexe alexe is offline
Join Date: May 2013
Location: Temecula, CA
Posts: 253

Agree. At that point you might as well do the fix rather than waiting to do it at the next conditional inspection. This is not going to be fun!
Alex Erdelyi
RV-12 #120758, N912AE
Flying as of 4/28/15
Paid through December, 2019
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Old 02-15-2018, 09:26 PM
E. D. Eliot E. D. Eliot is offline
Join Date: Dec 2005
Location: San Pedro
Posts: 891
Default Want to comply!!

I do appreciate this SB and all of the work that the technical staff at Van's must have put into it. Would have liked to order tonight but can't because I'm not sure which new parts need to be ordered. I'll call tomorrow along with many of you.

Recommendation to Van's --- please add a short note that lists the parts need in order to comply. If Van's did that this time then I apologize profusely.

Thanks again for the SB.
Building finally
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Old 02-15-2018, 11:08 PM
rgmwa rgmwa is offline
Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,606

Originally Posted by MrSparkle View Post
I assume that the only way to inspect the stabilator's front spar for cracks is to remove the stabilator and the hinge brackets. Agree/disagree?

Ian Heritch
RV-12 N417E
That's if you can actually see any cracks. They would be very easy to miss judging by the photos in the SB. I wonder what prompted Vans to look there, although I guess it's an obvious potential trouble spot when you think about it. This won't be a fun job, but if you have to pull everything apart to check you might as well bite the bullet and do the fix at the same time.
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Old 02-15-2018, 11:33 PM
Harvey rv12 Harvey rv12 is offline
Join Date: Apr 2015
Location: Olympia WA
Posts: 156

Vans SB’s usually have a “synopsis” detailing what prompted the bulletin.
This SB doesn’t say much. Would be interesting to learn how this was discovered.
Tom O.
RV-12, bought flying
Hoskins Field, 44T
Olympia WA

the bitterness of poor quality
lingers long after the cheap
price is forgotten.
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Old 02-16-2018, 07:21 AM
skydiverlv skydiverlv is offline
Join Date: Jul 2008
Location: kansas
Posts: 290

I like the 6hr labor estimate. That indicates how old and slow I am.

Larry Vandegrift
ULPower 260is
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Old 02-16-2018, 08:25 AM
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Piper J3 Piper J3 is offline
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 1,192

I wonder if Van's will supply parts free-of-charge for this SB like they did for fuel tank and landing gear?
Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 406

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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Old 02-16-2018, 09:16 AM
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TomVal TomVal is offline
Join Date: Dec 2007
Location: SC & CA
Posts: 803

Since the stabilizer has to be pulled, if you haven't already done so, might as well complete SB 16-08-01 - Stabilizer Bearing Inspection.
Tom Valenzia
RV8 (Sold)
RV12 Jabiru 2200 Powered
Dues contributor since 2007

Learn from the mistakes of others. You won't live long enough to make all of them yourself...Anonymous
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