---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 02/22/18: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:50 AM - Re: Air tanks (jlpartington@reagan.com) 2. 08:55 AM - Re: Re: Air tanks (Bitterlich, Mark G CIV NAVAIR, WD) 3. 02:59 PM - Re: Air tanks (Looigi) 4. 03:09 PM - Re: Re: Air tanks (William Geipel) ________________________________ Message 1 _____________________________________ Time: 03:50:54 AM PST US Subject: RE: Yak-List: Air tanks From: jlpartington@reagan.com =0Ayour flap actuator is on the way back.=0A =0AI guess I need two SS main air tanks when you get a chance.=0A =0A =0A-----Original Message-----=0AFro m: "doug sapp" =0ASent: Wednesday, 21 February, 2018 5:40pm=0ATo: yak-list@matronics.com=0ASubject: Yak-List: Air tanks=0A=0A =0A=0AWe have been trying to discover the root cause of many of you reporti ng that you are getting a very short life (some less than a year) out of th e QSF-2A and the 12-5522-00 valves used in the CJ6, which are the same as t he 3 and 5 port valves used in the Yaks.=0ARecently a customer who was upgr ading to our new CJ6 stainless steel main and emergency air tanks reported that when he removed his stock steel Chinese tanks he found about a cup of water in each tank. His tanks were also very rusty. He remarked that he h as been religiously maintaining his stainless desiccant filter on a 8 hour basis, and while the color of the desiccant had changed the filters had not been found to be wet at any time. This would tend to make me believe th at the water in the tanks was there BEFORE the stainless filter was install ed. As we all know there are only two things which "kill" these valves; w ater and grit. Water rusts the steel plate, grit abrades it, and in a shor t time it is leaking. I am guessing that the rust particles and or water from his tanks is what has been damaging his valves.=0AWe are now testing a "final filter" which is a very small filter which connects directly to th e 3 or 5 port valves "air in" port. Dee Grimm has agreed to install one in his aircraft in tandem with the installation of a new QDF-2A. This filter should remove any rust particles and grit from the system before it has a chance to enter the valves, but before it will be 100% effective the air ta nks should be drained and checked for water because this is NOT a desiccant filter and will not remove moisture.=0AWe are recommending that both air t anks be drained at the annual Conditional inspection. We will include a dr ain plug crush seal in our conditional kits in the future.=0A =0APlease not e that our office will be closed Feb 23rd through the 3rd. It's 0F here an d it's time for a sun break!!=0ABest to all,=0ADoug and Kathleen.=0A=0A=0A =0A=0A=0A=0A=0A[ ]( http://www.avg.com/email-signature?utm_medium=email& utm_source=link&utm_campaign=sig-email&utm_content=webmail )Virus-fre e. [ www.avg.com ]( http://www.avg.com/email-signature?utm_medium=email&u tm_source=link&utm_campaign=sig-email&utm_content=webmail )[ ]( #m_7 32997041554787883_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2 )=0A=0A=0A=0A ________________________________ Message 2 _____________________________________ Time: 08:55:38 AM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: Re: Yak-List: Re: Air tanks Not at all surprised that you do. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of William Geipel Sent: Wednesday, February 21, 2018 10:29 PM Subject: [Non-DoD Source] Re: Yak-List: Re: Air tanks I like it. > On Feb 21, 2018, at 19:50, HawkerPilot2015 wrote: > > --> > > Really....Trumpville? Keep the politics of these discussions. Damn. > > > Looigi wrote: >> Here in New Zealand while we don't have the freedom that you guys in Trumpville have, occasionally our Civil Aviation Authority comes out with some gems of sensibility and wisdom. >> >> It is an AD here to remove and drain our air tanks every 50 hours. Every year we must also clean out the inside "with a suitable method". I usually slosh a hals a litre or so of methylated spirits around inside them leave them to drain and dry while I do the rest of the annual. >> >> Last time I did this job I was grumping at the stupidity of having to do all that work to drain the few drops of water out of my tanks, but after reading Doug's post I think I have changed my mind. >> >> Chris > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=478183#478183 > > ________________________________ Message 3 _____________________________________ Time: 02:59:54 PM PST US Subject: Yak-List: Re: Air tanks From: "Looigi" Appologies. I wasn't trying to make a political statement, merely a humorous one. HawkerPilot2015 wrote: > Really....Trumpville? Keep the politics out of these discussions. Damn. > > > Looigi wrote: > > Here in New Zealand while we don't have the freedom that you guys in Trumpville have, occasionally our Civil Aviation Authority comes out with some gems of sensibility and wisdom. > > > > It is an AD here to remove and drain our air tanks every 50 hours. Every year we must also clean out the inside "with a suitable method". I usually slosh a hals a litre or so of methylated spirits around inside them leave them to drain and dry while I do the rest of the annual. > > > > Last time I did this job I was grumping at the stupidity of having to do all that work to drain the few drops of water out of my tanks, but after reading Doug's post I think I have changed my mind. > > > > Chris > Read this topic online here: http://forums.matronics.com/viewtopic.php?p=478201#478201 ________________________________ Message 4 _____________________________________ Time: 03:09:26 PM PST US Subject: Re: Yak-List: Re: Air tanks From: William Geipel Most normal people get it. No worries mate. > On Feb 22, 2018, at 15:59, Looigi wrote: > > > Appologies. I wasn't trying to make a political statement, merely a humorous one. > > > HawkerPilot2015 wrote: >> Really....Trumpville? Keep the politics out of these discussions. Damn. >> >> >> Looigi wrote: >>> Here in New Zealand while we don't have the freedom that you guys in Trumpville have, occasionally our Civil Aviation Authority comes out with some gems of sensibility and wisdom. >>> >>> It is an AD here to remove and drain our air tanks every 50 hours. Every year we must also clean out the inside "with a suitable method". I usually slosh a hals a litre or so of methylated spirits around inside them leave them to drain and dry while I do the rest of the annual. >>> >>> Last time I did this job I was grumping at the stupidity of having to do all that work to drain the few drops of water out of my tanks, but after reading Doug's post I think I have changed my mind. >>> >>> Chris >> > > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=478201#478201 > > > > > > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.