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07-03-2015, 01:10 PM
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Join Date: Mar 2010
Location: Raleigh, NC
Posts: 863
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Skyview Xponder 24 months inspection
From the Skyview installation manual (11-18 Altitude Encoder Calibration) : "no altitude encoder calibration is possible or necessary".
Should I conclude that the 24 months inspection of the Xponder is not required?
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07-03-2015, 01:15 PM
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Join Date: Feb 2007
Location: San Diego, CA
Posts: 1,670
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I'm pretty sure the check has to be accomplished every two years, either the VFR check, or if applicable, the IFR check.
The test verifies a lot more than just the calibration, such as proper freq. output, power output, etc.
Nice try, though!! 
__________________
Pete Hunt, [San Diego] VAF #1069
RV-6, RV-6A, T-6G
ATP, CFII, A&P
2020 Donation+, Gladly Sent
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07-03-2015, 01:53 PM
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Join Date: Jun 2015
Location: Woking UK
Posts: 56
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Does FAR 91-411 and 413 (bi-annual altimeter and transponder calibration checks) apply to experimental aircraft in the same way as certified machines - my experience do date has all be certified aircraft and my venture into building an RV12 is all new!
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07-03-2015, 02:12 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
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91.411 requires that the altimeter be checked for all aircraft operating IFR
91.413 requires the transponder be checked for all aircraft (with a transponder.)
No exceptions for EAB.
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07-03-2015, 03:05 PM
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Join Date: Mar 2010
Location: Raleigh, NC
Posts: 863
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Quote:
Originally Posted by BobTurner
91.411 requires that the altimeter be checked for all aircraft operating IFR
91.413 requires the transponder be checked for all aircraft (with a transponder.)
No exceptions for EAB.
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This is clear, thanks Bob (although I wish you were wrong  )
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07-03-2015, 05:46 PM
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Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,820
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I've got the D180/GTX-327 combo. The test has been done twice on mine with no issue (VFR Only). The tech made the comment, " Oh a Dynon! I've never failed one yet." --- Just a bit of reassurance!
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07-03-2015, 06:43 PM
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Join Date: Aug 2008
Location: Texas, Fort Worth
Posts: 1,237
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Quote:
Originally Posted by RFSchaller
I've got the D180/GTX-327 combo. The test has been done twice on mine with no issue (VFR Only). The tech made the comment, " Oh a Dynon! I've never failed one yet." --- Just a bit of reassurance!
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To give an another point view on the second check at the
600 hour 4 year point found my GTX327 not working correctly which required a $800.00 visit to Garmin,including shipping. 
__________________
John
RV12 N1212K
Flying Since June 2010
1020 Hours as of 9/30/2017
Johnrv12@icloud.com
RV14 Wing, arrived and building at Rdog's new Hanger at 16X
S/N 140014
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07-03-2015, 09:01 PM
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Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,820
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Bummer, John!
The only avionics failure I have had is the Garmin 496, and the brightness of the Garmin replacement sucks, so I put in my old 396 which works great.
Garmin avionics are great when they work, but I'm less than impressed by their reliability.
Rich
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07-03-2015, 11:59 PM
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Join Date: Sep 2007
Location: Mesa Arizona
Posts: 608
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My understanding is that every time your ADSB logs in to the system, a performance check is accomplished and if there is a problem or it is out of tolerance, you'll hear about it.
__________________
Myron Nelson
Mesa, AZ
RV-10 N24EV
KITPLANES Contributing Editor
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07-04-2015, 10:28 AM
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Join Date: Jun 2005
Location: Woodinville, WA
Posts: 1,499
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Myron,
This isn't completely accurate. The FAA can pull a ADS-B compliance report that detects if the ADS-B aspects of your transponder are in compliance with the 2020 rules.
It mostly focuses on if you are transmitting the correctly formatted data, and if your GPS is acting reasonably.
This does not happen every time you fly or completely automatically, and if you fail, they do not generally contact you. About 1/3 of the aircraft with ADS-B out fail this check right now.
It also does not have the capability to test many of the things that an on-ground transponder check verifies, like output power and altitude encoder accuracy. The compliance report never was meant to be a replacement for 91.413
--Ian Jordan
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