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04-21-2016, 04:06 AM
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Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,065
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VFR vs IFR Static Leak Down Rates
Can someone advise me if there is a different allowable leak down rate for VFR vs IFR? Are both 100'/min when altimeter is elevated 1000' above AGL?
__________________
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Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 622 
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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04-21-2016, 06:33 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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There is no static leak test requirement for a "VFR" (not IFR) aircraft.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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04-21-2016, 12:03 PM
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Join Date: Sep 2012
Location: Prairieville, LA
Posts: 221
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The Real Test?
Walt, that's the real test?
Pump system up to 1000' and time leak down,
and it has to be no more than 100'/min?
Thanks
__________________
Bert 
RV-9A ?Pearl?
Working on Instrument ticket
Donation Done for 2020
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04-21-2016, 12:45 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Quote:
Originally Posted by Bayou Bert
Walt, that's the real test?
Pump system up to 1000' and time leak down,
and it has to be no more than 100'/min?
Thanks
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That is correct. (1000ft above current elevation)
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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04-21-2016, 03:04 PM
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Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,065
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Quote:
Originally Posted by Walt
There is no static leak test requirement for a "VFR" (not IFR) aircraft.
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So let me ask you this... If my static system leaks more than 100'/min is it OK to schedule a VFR transponder certification test?
__________________
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Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 622 
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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04-21-2016, 03:29 PM
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Join Date: Oct 2012
Location: New Ulm, Minnesota
Posts: 283
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I would not accept any leakage, but that's me. I found that my Vertical speed indicator glass was leaking so I put a thin coat of epoxy around the edges of the glass and so far all is good.
Then I found that air was passing from the static side to the pitot side of the air speed indicator, {not fixable and it was new} so I purchased a new one.
Then I found some plastic fittings leaking...Ahhhhhhh
Yes very time consuming to get it right...
Be patient you will get it right..
__________________
Robin Mckee
New Ulm, MN 56073
RV3b N219BB
420 hours and counting
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04-21-2016, 03:53 PM
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Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,351
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Quote:
Originally Posted by Piper J3
So let me ask you this... If my static system leaks more than 100'/min is it OK to schedule a VFR transponder certification test?
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I don't think Mode C transponder test has any thing to do with static leak test. But finding a leak might not be that difficult and worth fixing.
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Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - Flying
Dues paid
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04-21-2016, 04:29 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Quote:
Originally Posted by Piper J3
So let me ask you this... If my static system leaks more than 100'/min is it OK to schedule a VFR transponder certification test?
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Yes, there is no requirement to test this for a 'VFR' transponder check. Would it be a good idea to fix it... yes, but don't let that stop you from getting the xpdr checked.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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04-21-2016, 05:53 PM
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Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,065
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Thanks guys... I will get Transponder test now and work on static system integrity this summer when I remove fuel tank and baggage compartment bulkhead.
__________________
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Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 622 
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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