Today's Message Index:
----------------------
1. 07:51 AM - Re: Re: Voltage Regulation LONG REPLY! (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
2. 09:23 AM - Re: Yak 52 / M14P documentation (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
3. 09:25 AM - (Yak Pilot)
4. 09:40 AM - Re: Yak 52 / M14P documentation (Bill VonDane)
5. 09:40 AM - Re: Yak 52 / M14P documentation (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
Message 1
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| Subject: | Re: Voltage Regulation LONG REPLY! |
Thanks for posting the results Les.
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of lesknox
Sent: Sunday, February 06, 2011 11:39 PM
Subject: Yak-List: Re: Voltage Regulation LONG REPLY!
The aircraft is a Yak-52, standard electrics.
Observation/ symptoms were:
Over voltage button IN
After start, GEN light on at idle, 24V
As the rpm is increased, GEN light extinguishes, >24V
Further rpm increase gives a fairly linear increase in volts
When volts just above 30, GEN light on, amps drop
The over-voltage button has now "popped".
Varying the cockpit regulator adjustment has no effect.
After getting as much info as I could, it was time to
try and find the problem
The Voltage Regulator is quite obvious when
you know roughly where and what to look for. In
the 52, it is in a recess in the front cockpit
floor, forward left side, near the firewall. It is
not easy to reach (seat needs to come out) and
clips holding it to the shock mount are difficult both
to remove and reattach. A thin person and long pliers
seem to help. Maybe there is better technique.
After a quick look at the reg itself, I
decided to check the wiring leading to the mounting plate.
They seemed to be intact and secure.
Next I removed the cockpit voltage adjustment
rheostat. This is, again, difficult because you
need to remove all the screws on the console on
the left side. They don't make gadgets like that
anymore. The connectors seemed to have
deteriorated a little (subsequently renewed). The
pot itself seemed fine, with linear change in
resistance. Only 0-6 Ohm.
At this stage I checked the integrity of
the circuit to the regulator mount and discovered that
there was a break between the cockpit adjuster and the
TC-9M-2 (which is I understand the Stabilizing Transformer
and is the large coil like device top outboard quadrant in
in the electrical system "grey box"). The applicable
connection to the TC-9M-2 is the bottom inboard post and
was the fault. It was not obvious because it was inside
the insulating material of the ring connector.
So the basic problem was a break in the voltage adjustment
line.
Replacing this connection might be the simplest first
step in troubleshooting this problem because it is relatively
accessible.
Little bit of rewiring, then everything back
where it belongs. Engine run carried out, with
system performing as it should.
Only took 8 hours in 40 degC heat! Still you
learn things this way.
Thanks to all who helped.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=329914#329914
Message 2
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| Subject: | Yak 52 / M14P documentation |
Bill, is this in reference to an aircraft you own or are contemplating
purchasing?
A direct answer to your question is pretty simple really. In the United
States, both the M-14 engine and the YAK-52 aircraft are operated in the
Experimental category. That said, there are no documents listing
"mandatory" maintenance and overhaul requirements for the YAK-52 and the
Russian M-14P engine from the original Russian manufacturer. Each year
the engine and aircraft receive a Conditional Inspection and are put
back into service by an A&P mechanic. It would help if you could give a
more detailed answer as to your goals so that the experienced members of
this list could answer your questions in better detail.
As regards Experimental Engines, the best folks to talk to that I have
had experience with is the EAA. You might consider giving them a phone
call. They are always very helpful and full of information on what can,
and can not be done, on Experimental Aircraft.
Please keep in mind that many of the members of the YAK list are global
in nature, and what applies in one country may not apply in another.
While there are a lot of very experienced members in this list from all
over the world, in the end I honestly believe that the EAA remains the
best source in interpreting things (in the United States) like you are
asking on the M-14P engine and the YAK airframe.
Best Regards,
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bill VonDane
Sent: Sunday, February 06, 2011 3:31 PM
Subject: Yak-List: Yak 52 / M14P documentation
Hey all...
I am hoping maybe someone on this list can help with some info...
What I need is documentation that shows the Russian overhaul
requirements / times...something that actually lists times and
maintenance / overhaul requirements for the Yak 52 and the Russian
M14P engine...
If that doesn't make sense please drop me a line...
Thanks!
-Bill
Message 3
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To all Yak List Readers in the United States.
Gentleman, this is something all of us should keep in mind. A letter of inquiry
from an FAA official was recently received by one of the YAK list members.
This posting is not intended to discuss that letter in detail, but instead to
take a few quotes from it for everyone to contemplate.
First quote:
Understanding that you are a prolific writer on the aviation websites, this letter
is an effort to focus solely on details of the actual reported events,
Second Quote:
For the purpose of a speedy, fair and accurate resolve to this instant complaint,
please avoid efforts to engage in your publically stated methods intended to
overload the FSDO with documents.
It is doubtful that any YAK list reader would ever consider such an action seriously,
but it is entirely possible it might have at one time or another been
implied in jest. What is a surprise is that anyone from the FAA would ever take
such tongue in cheek comments seriously, let alone mention them in official
correspondence.
Regardless, as every owner of a U.S. YAK or CJ knows, these are Experimental Aircraft
and are exempt from certain maintenance requirements normally required
for fully certificated aircraft. This can lead to confusion with enforcing agencies
in determining what is proper and what is improper in the way of airframe
and engine care along with necessary inspections, etc.
What many of us may not have realized is that the FAA reads these lists and in
some cases may actually use information gained from archived postings in order
to help determine whether aircraft owners are in compliance with FARs.
I suppose it is conceivable that the FAA might even post questions on the YAK list
in order to gain additional information in pursuit of their mission.
Please note the quote and specific mention of being a prolific writer on the aviation
websites. This implies that at the very minimum, the FAA reads these
postings and takes them seriously.
This posting is not intended to open a discussion on what is considered right or
wrong. Nor is it intended to start a debate on the First Amendment. Instead
it is intended to comply with the stated purpose of the YAK list, which is
to educate us all on matters pertaining to our aircraft.
No replies or discussion are necessary to this posting. Take it for what it is
worth and leave it at that. Please.
Message 4
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| Subject: | Re: Yak 52 / M14P documentation |
Hey Mark...
It's a Yak I already own... The issue is I lost my business first of
last year and am in the middle of a bankruptcy (not sure I want to
post that to the entire list)... I have a meeting with the trustee on
the 15th and my attorney wants me to produce documentation that the
engine and or airframe is in need of major work, and estimates as to
what it would take to do that work. This is to validate my claims
that the yak is not worth their effort to take possession of and try
to sell...and so that I can keep it...
The Yak is an 81 Yak 52 with about 880 hours on the m14p, and about
2580 total time... he plane hasn't flown in a year and the annual was
due last august...
So here is what I am thinking I need done: Note, the plane is located
in Colorado
annual
engine overhaul / replace - has 880 hours
prop repair and repaint - has a dime sized chip in one of the blades
gear actuators rebuild - just need one main and the nose
uplocks rebuild - all
oil cooler hoses replaced
elevators repaired, recovered and painted - both have damaged trailing edges
Thanks...
-Bill VonDane
billvondane@gmail.com
719-749-1149
On Mon, Feb 7, 2011 at 10:19 AM, Bitterlich, Mark G CIV Det Cherry
Point, MALS-14 64E <mark.bitterlich@navy.mil> wrote:
>
> Bill, is this in reference to an aircraft you own or are contemplating
> purchasing?
>
> A direct answer to your question is pretty simple really. In the United
> States, both the M-14 engine and the YAK-52 aircraft are operated in the
> Experimental category. That said, there are no documents listing
> "mandatory" maintenance and overhaul requirements for the YAK-52 and the
> Russian M-14P engine from the original Russian manufacturer. Each year
> the engine and aircraft receive a Conditional Inspection and are put
> back into service by an A&P mechanic. It would help if you could give a
> more detailed answer as to your goals so that the experienced members of
> this list could answer your questions in better detail.
>
> As regards Experimental Engines, the best folks to talk to that I have
> had experience with is the EAA. You might consider giving them a phone
> call. They are always very helpful and full of information on what can,
> and can not be done, on Experimental Aircraft.
>
> Please keep in mind that many of the members of the YAK list are global
> in nature, and what applies in one country may not apply in another.
> While there are a lot of very experienced members in this list from all
> over the world, in the end I honestly believe that the EAA remains the
> best source in interpreting things (in the United States) like you are
> asking on the M-14P engine and the YAK airframe.
>
> Best Regards,
>
> Mark Bitterlich
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bill VonDane
> Sent: Sunday, February 06, 2011 3:31 PM
> To: yak-list
> Subject: Yak-List: Yak 52 / M14P documentation
>
>
> Hey all...
>
> I am hoping maybe someone on this list can help with some info...
> What I need is documentation that shows the Russian overhaul
> requirements / times...something that actually lists times and
> maintenance / overhaul requirements for the Yak 52 and the Russian
> M14P engine...
>
> If that doesn't make sense please drop me a line...
>
> Thanks!
> -Bill
>
>
Message 5
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| Subject: | Yak 52 / M14P documentation |
No problem Bill.
I will answer this privately.
Mark
---------- Forwarded message ----------
From: Bill VonDane <billvondane@gmail.com>
Subject: Re: Yak-List: Yak 52 / M14P documentation
Hey Mark...
It's a Yak I already own... The issue is I lost my business first of
last year and am in the middle of a bankruptcy (not sure I want to
post that to the entire list)... I have a meeting with the trustee on
the 15th and my attorney wants me to produce documentation that the
engine and or airframe is in need of major work, and estimates as to
what it would take to do that work. This is to validate my claims
that the yak is not worth their effort to take possession of and try
to sell...and so that I can keep it...
The Yak is an 81 Yak 52 with about 880 hours on the m14p, and about
2580 total time... he plane hasn't flown in a year and the annual was
due last august...
So here is what I am thinking I need done: Note, the plane is located
in Colorado
annual
engine overhaul / replace - has 880 hours
prop repair and repaint - has a dime sized chip in one of the blades
gear actuators rebuild - just need one main and the nose
uplocks rebuild - all
oil cooler hoses replaced
elevators repaired, recovered and painted - both have damaged trailing edges
Thanks...
-Bill VonDane
billvondane@gmail.com
719-749-1149
On Mon, Feb 7, 2011 at 10:19 AM, Bitterlich, Mark G CIV Det Cherry
Point, MALS-14 64E <mark.bitterlich@navy.mil> wrote:
>
> Bill, is this in reference to an aircraft you own or are contemplating
> purchasing?
>
> A direct answer to your question is pretty simple really. In the United
> States, both the M-14 engine and the YAK-52 aircraft are operated in the
> Experimental category. That said, there are no documents listing
> "mandatory" maintenance and overhaul requirements for the YAK-52 and the
> Russian M-14P engine from the original Russian manufacturer. Each year
> the engine and aircraft receive a Conditional Inspection and are put
> back into service by an A&P mechanic. It would help if you could give a
> more detailed answer as to your goals so that the experienced members of
> this list could answer your questions in better detail.
>
> As regards Experimental Engines, the best folks to talk to that I have
> had experience with is the EAA. You might consider giving them a phone
> call. They are always very helpful and full of information on what can,
> and can not be done, on Experimental Aircraft.
>
> Please keep in mind that many of the members of the YAK list are global
> in nature, and what applies in one country may not apply in another.
> While there are a lot of very experienced members in this list from all
> over the world, in the end I honestly believe that the EAA remains the
> best source in interpreting things (in the United States) like you are
> asking on the M-14P engine and the YAK airframe.
>
> Best Regards,
>
> Mark Bitterlich
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bill VonDane
> Sent: Sunday, February 06, 2011 3:31 PM
> To: yak-list
> Subject: Yak-List: Yak 52 / M14P documentation
>
>
> Hey all...
>
> I am hoping maybe someone on this list can help with some info...
> What I need is documentation that shows the Russian overhaul
> requirements / times...something that actually lists times and
> maintenance / overhaul requirements for the Yak 52 and the Russian
> M14P engine...
>
> If that doesn't make sense please drop me a line...
>
> Thanks!
> -Bill
>
>
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