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Pitot leak check

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rv9jim(at)juno.com
Guest

Posted: Mon Feb 04, 2008 12:55 pm Post subject: Pitot leak check

I am doing the leak check on my pitot system.  What are the usual guide

lines.  Right now, I have a leak down at this rate:      50K to 45K  in

+2 min.     110K to 105K in 50 sec. The only joints left are the screw on

nuts at both of my air speed indicators.

Jim Nelson

N15JN

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recapen(at)earthlink.net
Guest

Posted: Mon Feb 04, 2008 1:10 pm Post subject: Pitot leak check

I remember hearing that you are 'allowed' 100'/min on your static system.

I don't recall hearing anything on the pitot system.



Have you tried the ASI's independantly of each other?  One of them may be bad....it has happened......



I'll be monitoring this thread as I am interested too....



--

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rv9jim(at)juno.com
Guest

Posted: Mon Feb 04, 2008 2:05 pm Post subject: Pitot leak check

Yup, I'll  need to make a close off fitting to do that.   I think I will

do the Teflon grease on the tubing first and see how it does.  



Jim

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s.hamer(at)verizon.net
Guest

Posted: Mon Feb 04, 2008 4:38 pm Post subject: Pitot leak check

Jim,



Look in AC 43.13 if you have a copy.  It's all in there.  My book is at the 

hangar and I don't want to rely on my memory to give you the info.



Steve Hamer

RV-6

Apple Valley, Ca



 	  Quote: 	
		   



 I am doing the leak check on my pitot system.  What are the usual guide

 lines.  Right now, I have a leak down at this rate:      50K to 45K  in

 +2 min.     110K to 105K in 50 sec. The only joints left are the screw on

 nuts at both of my air speed indicators.

 Jim Nelson

 N15JN

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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rvreynolds(at)macs.net
Guest

Posted: Mon Feb 04, 2008 5:11 pm Post subject: Pitot leak check

The pitot/static system tests are covered in FAR/AMT (Aviation Maintenance Technicians). The FAR/AMT is a good book to have and is available from Spruce, Sporties, etc.

FAR PART 23.1325(b)(2)(i) - Static Pressure System (Leak Test)



FAR APPENDIX E to PART 43 - Altimeter System Test and Inspection 



These test are normally done by the avionic shop that "certifies" your transponder but you will save boo coos of money if you have a leak tight system before you go to the shop..

In accordance with FAR PART  23.1325(b)(2)(i), conducted proof test demonstrating the integrity of the  static pressure system. At 1000 ft above airport elevation, The leakage was ----- ft  in 1 minute. The requirement is less than 100 ft in 1 minute.

Be very careful in applying pressure or vacuum to your system. You can damage your instruments!



Richard Reynolds

Norfolk, VA

RV-6A 430 hrs.



On Feb 4, 2008, at 3:49 PM, James H Nelson wrote:

[quote]--> RV-List message posted by: James H Nelson <rv9jim(at)juno.com (rv9jim(at)juno.com)>

I am doing the leak check on my pitot system.  What are the usual guide

lines.  Right now, I have a leak down at this rate:      50K to 45K  in

+2 min.     110K to 105K in 50 sec. The only joints left are the screw on

nuts at both of my air speed indicators.





Jim Nelson

N15JN

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Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Mon Feb 04, 2008 6:47 pm Post subject: Pitot leak check

Only specs for altimeter and static system, not pitot, at least if you 

are referring to Appendix E.



S Hamer wrote:

 	  Quote: 	
		   



 Jim,



 Look in AC 43.13 if you have a copy.  It's all in there.  My book is 

 at the hangar and I don't want to rely on my memory to give you the info.



 Steve Hamer

 RV-6

 Apple Valley, Ca

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

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