Yak-List Digest Archive

Mon 08/28/17


Total Messages Posted: 9



Today's Message Index:
----------------------
 
     1. 03:31 AM - Pontoon Kits? (Craig Payne)
     2. 04:43 AM - Re: Pontoon Kits? (William Geipel)
     3. 07:23 AM - Re: [Non-DoD Source] Re: Re: gear retraction problem (dabear@damned.org)
     4. 08:47 AM - Re: [Non-DoD Source] Re: Housai Oil Pressure (Bitterlich, Mark G CIV NAVAIR, WD)
     5. 09:12 AM - Re: [Non-DoD Source] Re: Housai Oil Pressure (Justin Drafts)
     6. 10:51 AM - FSDO reorg (for US audience) (Richard Romaine)
     7. 02:00 PM - Re: [Non-DoD Source] Re: Housai Oil Pressure (Stephen Jones)
     8. 08:10 PM - Yak-52 snot valve needed please (Looigi)
     9. 09:58 PM - Re: Pontoon Kits? (Roger Kemp)
 
 
 


Message 1


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    Time: 03:31:33 AM PST US
    From: Craig Payne <yakman285@gmail.com>
    Subject: Pontoon Kits?
    Pontoon kits for a CJ? Of course not. But wait, let's talk about the Yak. My *Yakolev Aircraft since 1924* book has a picture of a Yak-18A on skis. Looks like a CJ's Daddy. So the next time I see Lakeland Florida Airport covered in snow, I'll put skis on it. So who's your Daddy? Craig Payne


    Message 2


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    Time: 04:43:22 AM PST US
    From: William Geipel <l129bs@gmail.com>
    Subject: Re: Pontoon Kits?
    I have a set of Yak skis. Anyone interested? > On Aug 28, 2017, at 04:29, Craig Payne <yakman285@gmail.com> wrote: > > Pontoon kits for a CJ? Of course not. But wait, let's talk about the Yak. My Yakolev Aircraft since 1924 book has a picture of a Yak-18A on skis. Looks like a CJ's Daddy. So the next time I see Lakeland Florida Airport covered in snow, I'll put skis on it. So who's your Daddy? > > Craig Payne


    Message 3


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    Time: 07:23:15 AM PST US
    Subject: Re: gear retraction problem
    From: "dabear@damned.org" <dabear@damned.org>
    Once again Mark brings reason, experience, knowledge to the discussion. They were lucky the airplane didn't come down on someone or that the whole hangar didn't come down on them. On 8/24/2017 1:18 PM, Bitterlich, Mark G CIV NAVAIR, WD wrote: > > Ok Didier..... since you brought it up..... > > Let me be perfectly clear. Aircraft Maintenance has been my profession for over 40 years. How many others reading this email can say that? So let me be specific and hopefully educational. And saying this, I expect negative feedback by the usual folks who demand political correctness at every step. > > This gentleman was correctly advised by a number of experts to use proper equipment, namely proper aircraft jacks, in order to cycle the landing gear. In fact one person actually begged him to do that, because he was worried the gent might try to make up some method using whatever he had at hand, without any experience and/or prior knowledge. All good advice. This gent then ignored that advice. > > 1. The engine mount is not designed or stressed to be used as a lifting point for raising the aircraft. However, it was used for that function in this lift. Just because something does not snap and break when you put stress on it, does not mean it has not been damaged. So now there is the possibility of unknown damage to a critical piece of hardware. Not LIKELY, but entirely possible. > > 2. The aircraft was lifted using the actual structure of the building as a method to support the weight. There were no load tests or engineering reviews done on the structural condition of the hangar roof, as was pointed out by someone else on this list. The hangar roof is not something that is designed to be load bearing even if made from steel. What kind of prior load tests were done using this method? Any? > > 3. Straps and come-a-longs were used to attach to non-specified and non-tested lift points. Once again to get the aircraft off the ground. > > 4. Once off the ground, people climbed on the aircraft, and actuated the landing gear. Had anything failed at this point, there is a strong chance people would have been hurt. > > The fact is that in aircraft maintenance, the end never justifies the means. This gent got away with this ad-hoc method once. I am glad he did. I do not wish loss or injury to anyone and I am sure no one else does either. > > But ask yourself this question: If any official of any aviation agency from any country in the world saw this being done, what would they have called it and what would they have done about it? In the United States, the aircraft owner is actually ultimately accountable for work being performed on his aircraft. Yes, there are many "but if's" to this statement, but ultimately it can come down to that. Had anything failed in this effort, had anyone gotten hurt, what would the judgement have been by the FAA? > > Were the manufacture's procedures followed when performing this work? > > NO. > > Was proper equipment being used that had been properly load tested as called for in the procedures? > > NO. > > Did the owner use a totally unauthorized procedure which put the aircraft, himself and those around him at risk? > > YES., > > All of this adds up to, and meets the definition of being "careless and reckless". What makes it worse is that this gentleman asked about doing it first to everyone on this list, was strongly advised not to, and then did it anyway. After doing it, he seemed to feel pretty good about it, taking pictures and advising others how to go about doing it. Going further still, one reader actually classified his actions in a congratulatory sense, which of course encourages others to ignore every bit of regulatory process and do whatever they feel is necessary to get the results they are looking for as well. That kind of attitude is DANGEROUS. > > At the end of the day, this gent has YET to follow the exact troubleshooting steps recommended by the foremost expert on this system found on this list-server. Which means this aircraft is going to have to go back up into the air again, and unless someone speaks up and says DO NOT DO THIS! I did. In no uncertain terms. My conscience is clear. > > Over the years I have spent helping others on the Yak List, I have learned to recognize those that only use advice to get what they want, and ignore every caution offered in the process. Thus I am now much more cautious giving it these days as it comes with a sense of responsibility. > > So Didier, my choice of words might be considered "rude" by some I fully admit. But they are 100% accurate. > > Mark > > > -----Original Message----- > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Didier Blouzard > Sent: Thursday, August 24, 2017 11:07 AM > To: yak-list@matronics.com > Subject: Re: [Non-DoD Source] Re: Yak-List: Re: gear retraction problem > > This judgment is a little rude Mark > When we find a problem we try to solve it the best as we can. It happens that we make small or big mistakes but it is rude to say "careless and reckless" > Anyway nobody was hurt apparently thanks god and in the future I'm sure Bruno will read more patiently and carrefully the good (or less good!!!) advices of the list. > > > Thanks to all for your patient help care and support to us ignorant little pilots. > > > Didier > > 2017-08-23 20:44 GMT+02:00 Bitterlich, Mark G CIV NAVAIR, WD <mark.bitterlich@navy.mil>: > > > > This was a good way to hurt yourself, and your friends, and to impose stress loads in places that were never designed for same. > > This was ignoring every bit of advice from every expert on this list that took the time to answer. > > This was not making lemonade. This was careless and reckless. > > Good Day. > > Mark Bitterlich > > > -----Original Message----- > From: owner-yak-list-server@matronics.com <mailto:owner-yak-list-server@matronics.com> [mailto:owner-yak-list-server@matronics.com <mailto:owner-yak-list-server@matronics.com> ] On Behalf Of Bill Geipel > Sent: Wednesday, August 23, 2017 1:22 PM > To: yak-list@matronics.com > Subject: [Non-DoD Source] Re: Yak-List: Re: gear retraction problem > > when u have lemons u make lemonade. We do the best we can with what we have. > Creative. > > On Aug 24, 2017, at 01:53, doug sapp <dougsappllc@gmail.com> wrote: > > > > What do I think??? I think you seem to be a person willing to take risks which are way out of proportion to the reward. However that being said, it would appear that you are in need of replacing your QSF-2A valve---OR---- you have a gear actuator leaking and that air is venting out of your front gear valve. Dennis asks good questions, answers will help sort this all out. > > Doug > > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> > Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> > > > > On Tue, Aug 22, 2017 at 11:37 PM, airmanv2 <bruno.blanchard2@gmail.com> wrote: > > > > Hi , > thank you for your advices. > we raise the plane and tested the gear retraction. > it was ok with the remaining air at 25 atm, we tested up and down 4 times till the air remains at about 10 atm. > it works well that is strange..... > i ve noticed an air leak inside the main corp of the front gear handle when gear up position, > perhaps the front gear handle to replace ? > what do you think about that Doug? > Best regards > Bruno > > -------- > Fly safe > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=472081#472081 <http://forums.matronics.com/viewtopic.php?p=472081#472081> <http://forums.matronics.com/viewtopic.php?p=472081#472081 <http://forums.matronics.com/viewtopic.php?p=472081#472081> > > > > > > > > =================================== > List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Yak-List <http://www.matronics.com/Navigator?Yak-List> > =================================== > FORUMS - > eferrer" target="_blank">http://forums.matronics.com <http://forums.matronics.com> > =================================== > WIKI - > errer" target="_blank">http://wiki.matronics.com <http://wiki.matronics.com> > =================================== > b Site - > -Matt Dralle, List Admin. > rel="noreferrer" target="_blank">http://www.matronics.com/contribution <http://www.matronics.com/contribution> > =================================== > > > > > > > > ========================== > List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Yak-List > =================================== > FORUMS - > eferrer" target="_blank">http://forums.matronics.com > =================================== > WIKI - > errer" target="_blank">http://wiki.matronics.com > =================================== > b Site - > -Matt Dralle, List Admin. > rel="noreferrer" target="_blank">http://www.matronics.com/contribution > =================================== > > > > > >


    Message 4


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    Time: 08:47:25 AM PST US
    From: "Bitterlich, Mark G CIV NAVAIR, WD" <mark.bitterlich@navy.mil>
    Subject: Re: Housai Oil Pressure
    I believe this is so obvious it is not worth mentioning, but just in case ... I will. Dennis & Walt have pointed out that there are two (brown colored) oil pressure senders, one for the front cockpit and one for the rear. Dennis suggested checking the oil pressure indication in the back seat to see if it was fluctuating as well, which I am going to guess that it will not be. In other words, I am suggesting that you will probably have a problem in only one cockpit. If you have enough wire going to the cannon plugs at the sending units, SWITCH THE CANNON PLUGS from one sender to the other and see what your indications are now. If you don't have enough spare wire to do that, then switch the transmitters themselves. If the gripe moves to the back seat, you know pretty much for certain that you have a bad transmitter, which is not uncommon by the way. If the gripe stays with the front seat indications you can then switch the gages themselves to see if the gripe moves, which would narrow it down to the gage or wiring to the gage. It is an easy and logical progression to determine exactly where the problem is. If you switch the cannon plugs at the transmitters and the gripe TOTALLY goes away, you probably have a bad solder joint on the forward cockpit oil pressure transmitter cannon plug. Solder joints in high vibration areas tend to develop fractures over time and can be difficult to catch, so narrowing the problem down to where you are certain it is a wiring issue first is a smart move. Then just re-solder every connection in the transmitter cannon plug. Everything said here about the CJ also applies to the YAK-52. In addition, I am pretty sure that the transmitters themselves are fully interchangeable between YAK's Sukhoi's and CJ's. Oil and fuel pressure transmitters. Mark -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Walter Lannon Sent: Saturday, August 26, 2017 8:47 PM Subject: [Non-DoD Source] Re: Yak-List: Housai Oil Pressure That certainly sounds like an electrical problem. A defective Cannon plug is a very real possibility; either dirty contacts, broken wire making intermittent contact, etc. Could be at the guage or the transmitter. The oil press. transmitters (one for each cockpit) are mounted on frame 1. The firewall is frame 0 and the FUEL press. transmitters are mounted on the aft side of that- see photo. Oil press. units are the same but colour coded brown rather than yellow. Sorry, no photo for those! Check continuity to determine correct transmitter. Good luck. Walt -----Original Message----- From: 727gs Sent: Saturday, August 26, 2017 10:58 AM Subject: Yak-List: Housai Oil Pressure After starting my stock CJ-6, I noticed that the oil pressure needle on the triple gauge would bounce from normal pressure to 0 and back very quickly, like there was an electrical ground or connection that was intermittent. No real pattern to it and it went away when the power was advanced. All other indications were normal. I reseated the canon plugs on the back of the instrument to no avail and have no idea where the oil pressure probe on the engine is located. Any ideas? Thanks in advance. Steve Jones near Chicago -------- Steve near Chicago Read this topic online here: http://forums.matronics.com/viewtopic.php?p=472217#472217 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus


    Message 5


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    Time: 09:12:43 AM PST US
    From: Justin Drafts <draftsjust417@gmail.com>
    Subject: Re: Housai Oil Pressure
    Good info, thanks- Hope the gremlins get found. Justin N280NC On Aug 28, 2017 11:56 AM, "Bitterlich, Mark G CIV NAVAIR, WD" < mark.bitterlich@navy.mil> wrote: > mark.bitterlich@navy.mil> > > I believe this is so obvious it is not worth mentioning, but just in case > ... I will. > > Dennis & Walt have pointed out that there are two (brown colored) oil > pressure senders, one for the front cockpit and one for the rear. Dennis > suggested checking the oil pressure indication in the back seat to see if > it was fluctuating as well, which I am going to guess that it will not be. > In other words, I am suggesting that you will probably have a problem in > only one cockpit. > > If you have enough wire going to the cannon plugs at the sending units, > SWITCH THE CANNON PLUGS from one sender to the other and see what your > indications are now. If you don't have enough spare wire to do that, then > switch the transmitters themselves. If the gripe moves to the back seat, > you know pretty much for certain that you have a bad transmitter, which is > not uncommon by the way. If the gripe stays with the front seat > indications you can then switch the gages themselves to see if the gripe > moves, which would narrow it down to the gage or wiring to the gage. It is > an easy and logical progression to determine exactly where the problem is. > > If you switch the cannon plugs at the transmitters and the gripe TOTALLY > goes away, you probably have a bad solder joint on the forward cockpit oil > pressure transmitter cannon plug. Solder joints in high vibration areas > tend to develop fractures over time and can be difficult to catch, so > narrowing the problem down to where you are certain it is a wiring issue > first is a smart move. Then just re-solder every connection in the > transmitter cannon plug. > > Everything said here about the CJ also applies to the YAK-52. In > addition, I am pretty sure that the transmitters themselves are fully > interchangeable between YAK's Sukhoi's and CJ's. Oil and fuel pressure > transmitters. > > Mark > > > -----Original Message----- > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@ > matronics.com] On Behalf Of Walter Lannon > Sent: Saturday, August 26, 2017 8:47 PM > To: yak-list@matronics.com > Subject: [Non-DoD Source] Re: Yak-List: Housai Oil Pressure > > That certainly sounds like an electrical problem. A defective Cannon plug > is a very real possibility; either dirty contacts, broken wire making > intermittent contact, etc. Could be at the guage or the transmitter. The > oil press. transmitters (one for each cockpit) are mounted on frame 1. The > firewall is frame 0 and the FUEL press. transmitters are mounted on the > aft side of that- see photo. Oil press. units are the same but colour > coded brown rather than yellow. Sorry, no photo for those! > > Check continuity to determine correct transmitter. Good luck. > > Walt > > > -----Original Message----- > From: 727gs > Sent: Saturday, August 26, 2017 10:58 AM > To: yak-list@matronics.com > Subject: Yak-List: Housai Oil Pressure > > > After starting my stock CJ-6, I noticed that the oil pressure needle on > the triple gauge would bounce from normal pressure to 0 and back very > quickly, like there was an electrical ground or connection that was > intermittent. No real pattern to it and it went away when the power was > advanced. All other indications were normal. I reseated the canon plugs on > the back of the instrument to no avail and have no idea where the oil > pressure probe on the engine is located. > > Any ideas? Thanks in advance. > > Steve Jones > near Chicago > > -------- > Steve near Chicago > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=472217#472217 > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > >


    Message 6


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    Time: 10:51:56 AM PST US
    From: Richard Romaine <romaine_richard@yahoo.com>
    Subject: FSDO reorg (for US audience)
    Open question to the list on the FAA FSDO reorg...anyone better connected k now the plan for how we will interact with FAA for operating limits and pro gram letters in the future?=C2- Thanks, Rich


    Message 7


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    Time: 02:00:37 PM PST US
    From: Stephen Jones <727gs@att.net>
    Subject: Re: Housai Oil Pressure
    Hopefully, I will get a chance to look at it this week. Fighting with a sic k Bonanza with a gear problem. Any Bonanza reverse current relay gurus out there? Steve On Monday, August 28, 2017 11:13 AM, Justin Drafts <draftsjust417@gmail .com> wrote: Good info, thanks- Hope the gremlins get found. Justin N280NC On Aug 28, 2017 11:56 AM, "Bitterlich, Mark G CIV NAVAIR, WD" <mark.bitterl ich@navy.mil> wrote: itterlich@navy.mil> I believe this is so obvious it is not worth mentioning, but just in case . .. I will. Dennis & Walt have pointed out that there are two (brown colored) oil press ure senders, one for the front cockpit and one for the rear.=C2- =C2-De nnis suggested checking the oil pressure indication in the back seat to see if it was fluctuating as well, which I am going to guess that it will not be.=C2- In other words, I am suggesting that you will probably have a pro blem in only one cockpit. If you have enough wire going to the cannon plugs at the sending units, SWI TCH THE CANNON PLUGS from one sender to the other and see what your indicat ions are now.=C2- If you don't have enough spare wire to do that, then sw itch the transmitters themselves.=C2- If the gripe moves to the back seat , you know pretty much for certain that you have a bad transmitter, which i s not uncommon=C2- by the way.=C2- =C2-If the gripe stays with the fr ont seat indications you can then switch the gages themselves to see if the gripe moves, which would narrow it down to the gage or wiring to the gage. =C2- It is an easy and logical progression to determine exactly where the problem is. If you switch the cannon plugs at the transmitters and the gripe TOTALLY go es away, you probably have a bad solder joint on the forward cockpit oil pr essure transmitter cannon plug.=C2- =C2-Solder joints in high vibration areas tend to develop fractures over time and can be difficult to catch, s o narrowing the problem down to where you are certain it is a wiring issue first is a smart move.=C2- Then just re-solder every connection in the tr ansmitter cannon plug. Everything said here about the CJ also applies to the YAK-52.=C2- In addi tion, I am pretty sure that the transmitters themselves are fully interchan geable between YAK's Sukhoi's and CJ's.=C2- Oil and fuel pressure transmi tters. Mark -----Original Message----- From: owner-yak-list-server@ matronics.com [mailto:owner-yak-list-server@ m atronics.com] On Behalf Of Walter Lannon Sent: Saturday, August 26, 2017 8:47 PM Subject: [Non-DoD Source] Re: Yak-List: Housai Oil Pressure That certainly sounds like an electrical problem.=C2- A defective Cannon plug is a very real possibility;=C2- either dirty contacts, broken wire m aking intermittent contact, etc.=C2- Could be at the guage or the transmi tter.=C2- The oil press. transmitters (one for each cockpit) are mounted on frame 1.=C2- The firewall is frame 0 and the FUEL press. transmitters are mounted on=C2- the aft side of that- see photo.=C2- Oil press. unit s are the same but colour coded brown rather than yellow.=C2- Sorry, no p hoto for those! Check continuity to determine correct transmitter.=C2- Good luck. Walt -----Original Message----- From: 727gs Sent: Saturday, August 26, 2017 10:58 AM Subject: Yak-List: Housai Oil Pressure After starting my stock CJ-6, I noticed that the oil pressure needle on the triple gauge would bounce from normal pressure to 0 and back very quickly, like there was an electrical ground or connection that was intermittent. N o real pattern to it and it went away when the power was advanced. All othe r indications were normal. I reseated the canon plugs on the back of the in strument to no avail and have no idea where the oil pressure probe on the e ngine is located. Any ideas? Thanks in advance. Steve Jones near Chicago -------- Steve near Chicago Read this topic online here: http://forums.matronics.com/ viewtopic.php?p=472217#472217 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/ antivirus ==== ==================== ========== = List" rel="noreferrer" target="_blank">http://www.matronics.com/ Naviga tor?Yak-List ==== ==================== ========== = FORUMS - eferrer" target="_blank">http://forums.matronics.com ==== ==================== ========== = WIKI - errer" target="_blank">http://wiki.matronics.com ==== ==================== ========== = b Site - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. rel="noreferrer" target="_blank">http://www.matronics.com/ contribution ==== ==================== ========== =


    Message 8


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    Time: 08:10:45 PM PST US
    Subject: Yak-52 snot valve needed please
    From: "Looigi" <cdoburton@gmail.com>
    Hello All, The boys have damaged the seat on our Yak-52 compressor drain (snot) valve. The valve thread is a bit loose too. Would anyone have a spare serviceable one lying in the bottom of their tool box please? Alternatively, has anyone come up with a fix? Many thanks Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=472289#472289


    Message 9


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    Time: 09:58:11 PM PST US
    From: Roger Kemp <f16viperdoc@me.com>
    Subject: Re: Pontoon Kits?
    Craig, I there was a guy up in Northwestern Canada that did mount his CJ on pontoon s in 2000. Never heard anymore of it. Doc Sent from my iPad > On Aug 28, 2017, at 5:29 AM, Craig Payne <yakman285@gmail.com> wrote: > > Pontoon kits for a CJ? Of course not. But wait, let's talk about the Yak. M y Yakolev Aircraft since 1924 book has a picture of a Yak-18A on skis. Looks like a CJ's Daddy. So the next time I see Lakeland Florida Airport covered i n snow, I'll put skis on it. So who's your Daddy? > > Craig Payne




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