Today's Message Index:
----------------------
1. 10:25 AM - Re: Sudden loss of power susequent emergency landing (Roger Kemp M.D.)
2. 11:34 AM - Re: Sudden loss of power susequent emergency landing (Bradly Banks)
3. 12:52 PM - Main Air pop-off valve repair kit (Nigel Willson)
4. 02:35 PM - Re: Main Air pop-off valve repair kit (A. Dennis Savarese)
5. 10:43 PM - Yak 50 wanted (Bradly Banks)
6. 11:49 PM - Re: Main Air pop-off valve repair kit (Nigel Willson)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Sudden loss of power susequent emergency landing |
Morning to you also Brad...more like early Monday morning now down under.
I can speculate on what caused the loss of power but the tear down will answ
er the majority of your questions. Having gone through an engine issue one y
ear ago now, the obvious as speculated was not the answer. They were close b
ut no banana. Wait for the tear down. The answers will be forthcoming. Tough
to do in this age of instant gratification for sure but the answer at tear d
own may surprise you. It did for me.
Glad all walked away without injury.
=46rom there to this, it was not what I thought as revealed by the tear down
. It was maliciously introduced FOD. Bottom line, it will be a better plane w
hen done as yours will be also.
Good luck.
Doc
Sent from my iPad
On May 6, 2012, at 1:28 AM, "Bradly Banks" <brad@runawaymedia.co.za> wrote:
>
> Good morning Rodger, firstly thank you for your kind consideration as far
as im aware the pilot did confirm the run up procedure before the take off
and confirms all was in order also on the level out glanced at the oil and w
as satisfied all was ok, in the subsequent high pressure situation did not h
ave time to verify that information.
>
> Kind regards
> Brad
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@ma
tronics.com] On Behalf Of Roger Kemp M.D.
> Sent: 06 May 2012 05:36 AM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Sudden loss of power susequent emergency landing
>
>
>
> Did you have a chance to look at fuel and oil pressure?
>
>
> Sent from my iPad
>
> On May 5, 2012, at 2:57 PM, "A. Dennis Savarese" <dsavarese0812@bellsouth.
net> wrote:
>
outh.net>
>>
>> If the prop can be rotated, check the following:
>> Compressions on all cylinders
>> Engine timing - verify the engine timing on both magnetos.
>>
>> Let me know what you find out with these two checks. We'll proceed from t
here after these two checks.
>>
>> A. Dennis Savarese
>> 334-285-6263
>> 334-546-8182 (mobile)
>> www.yak-52.com
>> Skype - Yakguy1
>>
>>
>> On 5/5/2012 10:57 AM, Bradly Banks wrote:
>>>
>>> Hello all , yesterday ZU-CWJ was participating in a corporate function. H
er is the scenario.
>>>
>>> Pilot : Comm +700 hrs
>>>
>>> 250 on yak 52
>>>
>>> Aerobatic rating
>>>
>>> Aerobatic display rating
>>>
>>> Aircraft : Yak 52 1985
>>>
>>> AF TT 876
>>>
>>> Eng TT 1850 smoh 425
>>>
>>> After 2 pax flights he loaded the 3^rd pax and took off , fuel on board 4
5/50
>>>
>>> Oil +8L
>>>
>>> After climb out , as he throttled back an audible =9Ccrump=9D
was heard and the engine lost all power, as if it was set to idle (38%)
>>>
>>> Pilot cycled the throttle the engine momentarily tried to pick up revs b
ut failed and continued to mill as if in and idle.
>>>
>>> Pilot closed the flaps and the gear and converted height into speed putt
ing the aircraft down wheels up on the beach on the downwind leg of the circ
uit, no injuries
>>>
>>> The prop is shorter and some structural damage to the tail section and r
udder /elevator from the surf.
>>>
>>> (http://www.ecr.co.za/kagiso/content/en/east-coast-radio/east-coast-radi
o-news?oid=1607463&sn=Detail&pid=6028&-Photos--Plane-crash-on-Durban-b
each <http://www.ecr.co.za/kagiso/content/en/east-coast-radio/east-coast-rad
io-news?oid=1607463&sn=Detail&pid=6028&-Photos--Plane-crash-on-Durban-
beach>)
>>>
>>> Post recovery :
>>>
>>> Tanks: both had fuel
>>>
>>> Oil: 8 litres
>>>
>>> Prop: can still be rotated
>>>
>>> Throttle fully functional both to Max and min
>>>
>>> Any possible suggestions?
>>>
>>> Brad
>>>
>>> Bradly Banks
>>>
>>> Merlin Aviation Services
>>>
>>> Cell:0825083200
>>>
>>> Tel :0333308580
>>>
>>> Email :Brad@runawaymedia.co.za
>>>
>>> Skype: bradly.banks
>>>
>>> *
>>>
>>>
>>> *
>>
>>
>>
>>
>
>
>
>
>
>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
>
>
<pre><b><font size=2 color="#000000" face="courier new,courier">
</b></font></pre></body></html>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Sudden loss of power susequent emergency landing |
Dear all, Its quite emotional, seeing the aircraft you have tendered so
carefully lying on the beach , helpless was really came to mind, but even
more precious than this was all the encouragement off this particular forum,
Thanks to Dennis , and Rodger , Jill and Mike Beresford. May we long
continue to build the community through these kind and considerate replies,
they are ostensibly the very back bone of the yak community.
I will wait to see what the CAA here recommend , (not really confident that
they will even pitch up to inspect the situation.)
Hopefully we will be able make a speedy and complete restoration
Kindest regards
Brad
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp M.D.
Sent: 06 May 2012 07:22 PM
Subject: Re: Yak-List: Sudden loss of power susequent emergency landing
Morning to you also Brad...more like early Monday morning now down under.
I can speculate on what caused the loss of power but the tear down will
answer the majority of your questions. Having gone through an engine issue
one year ago now, the obvious as speculated was not the answer. They were
close but no banana. Wait for the tear down. The answers will be
forthcoming. Tough to do in this age of instant gratification for sure but
the answer at tear down may surprise you. It did for me.
Glad all walked away without injury.
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Main Air pop-off valve repair kit |
I remember a while back someone in the USA offering a repair kit for Yak52 main
air pop-off valves.
I think it involved super-glue somewhere along the way...
Can anyone remind me where to get the kit from please (I'm in the UK).
My valve has been playing up recently - sometimes only allowing the air to build
to 3kg/cm, and at other times up the 6kg/cm (with associated worry from the
person in the back seat)!
Any help appreciated.
Thanks
Nigel
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Main Air pop-off valve repair kit |
Nigel,
Have you removed and replaced the pop off valve piston and possibly the
spring, if the spring is rusted or corroded? Both Jill at M14P and
Cliff Coy at Border Air in Swanton, Vermont sell the replacement pop off
valve pistons which have the seal. Not too expensive either.
Give it a try. I think it will fix your problem.
Dennis
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 5/6/2012 2:45 PM, Nigel Willson wrote:
> --> Yak-List message posted by: Nigel Willson<nigel@yakdisplay.com>
>
> I remember a while back someone in the USA offering a repair kit for Yak52 main
air pop-off valves.
> I think it involved super-glue somewhere along the way...
>
> Can anyone remind me where to get the kit from please (I'm in the UK).
>
> My valve has been playing up recently - sometimes only allowing the air to build
to 3kg/cm, and at other times up the 6kg/cm (with associated worry from the
person in the back seat)!
>
> Any help appreciated.
>
> Thanks
>
> Nigel
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Has any one any information on a yak 50 for sale?
Many thanks
Bradly Banks
Merlin Aviation Services
Cell:0825083200
Tel :0333308580
Email :Brad@runawaymedia.co.za
Skype: bradly.banks
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Main Air pop-off valve repair kit |
Thanks Dennis.
Do you have email for Jill or Cliff please?
You can email me privately nigel@yakdisplay.com
Thanks
-----Original Message-----
From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese
Sent: 06 May 2012 22:32
Subject: Re: Yak-List: Main Air pop-off valve repair kit
--> <dsavarese0812@bellsouth.net>
Nigel,
Have you removed and replaced the pop off valve piston and possibly the spring,
if the spring is rusted or corroded? Both Jill at M14P and Cliff Coy at Border
Air in Swanton, Vermont sell the replacement pop off valve pistons which have
the seal. Not too expensive either.
Give it a try. I think it will fix your problem.
Dennis
A. Dennis Savarese
334-285-6263
334-546-8182 (mobile)
www.yak-52.com
Skype - Yakguy1
On 5/6/2012 2:45 PM, Nigel Willson wrote:
> --> Yak-List message posted by: Nigel Willson<nigel@yakdisplay.com>
>
> I remember a while back someone in the USA offering a repair kit for Yak52 main
air pop-off valves.
> I think it involved super-glue somewhere along the way...
>
> Can anyone remind me where to get the kit from please (I'm in the UK).
>
> My valve has been playing up recently - sometimes only allowing the air to build
to 3kg/cm, and at other times up the 6kg/cm (with associated worry from the
person in the back seat)!
>
> Any help appreciated.
>
> Thanks
>
> Nigel
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|