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[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Converted from Wildcat! database. (read only)
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Bob Patterson

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Bob Patterson » Sun Feb 19, 2012 8:54 pm

This Bulletin is now posted in the FILES section,
under Rebel - 219. R-Service Bulletins.

Please have a look at it here, or at the PAS web site,
and check out your Rebels !


......bobp
bobp@prosumers.ca
bobp@pattersys.com
http://www.Pattersys.com
http://www.PattersonAeroSales.com
http://www.amway.ca/BobPatterson

De-fenestrate now ! Linux is the answer !

Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or persons.
Any action taken as a result of the contents of this email is totally the
responsibility of the reader.

http://www.danasoft.com/sig/pssignTux.jpg

--------------------------------------------------------------------------------------------
On Sunday 14 August 2011 20:05:05 Bob Patterson wrote:
Hi all !

I've just posted an Airworthiness Information Notice from
the PFA in England about a problem they have found on 2 Rebels
over there -- cracked fork ends on the stabilizer struts !!

We have never seen this here, and it might be from over-
tightening of the bolts, but -- PLEASE inspect both ends of
your stabilizer struts NOW, and regularly !! Please let the
factory know if you find anything !!

The page link is :

http://www.pattersonaerosales.com/Aircr ... chSpt.html

And the item is:

PFA Airworthiness Information Notice - Rebel tailplane strut fork end
inspection Aug. 14, 2011

If the strut forks break, the stab will fold up - and that would
spoil your whole afternoon !! :-(


......bobp
bobp@prosumers.ca
bobp@pattersys.com
http://www.Pattersys.com
http://www.PattersonAeroSales.com
http://www.amway.ca/BobPatterson

De-fenestrate now ! Linux is the answer !

Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or
persons. Any action taken as a result of the contents of this email is
totally the responsibility of the reader.

http://www.danasoft.com/sig/pssignTux.jpg

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Wayne G. O'Shea

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Wayne G. O'Shea » Sun Feb 19, 2012 8:54 pm

I guess there's always the chance a piece got stress cracked during
machining... BUT.. I've taken care/rebuilt of a LOT of wrecked Rebels in the
last 15 years. I've seen the strut tube broken completely.. I've seen the
strut fitting pulled out of the tube by shearing the rivets (with the tube
and fitting still in tact). I've seen the fitting ripped out with the first
rivet shearing the tube and the second rivet shearing clean, again no damage
to the fitting itself. I've seen the fitting bent and still bolted to the
stab fitting. I've never seen the AN3 bolt break or the fitting forks
themselves break.

Looking at the AD picture there's a lot of interesting "tracks" on the strut
in question and it's paint.

Don't anyone get to wrapped up and concerned about the fittings you have on
your Rebel. Have a look for any "bow in" while tightening and look for any
machining stress risers before assembly and buff any out you see. Any I have
worked on have just enough clearance in the forks to fit the stab fitting.
If yours have a lot of "daylight", then I suggest they were machined wrong.

Wayne

----- Original Message -----
From: "Bob Patterson" <bobp@prosumers.ca>
To: <rebel-builders@dcsol.com>
Cc: <Shipping@murphyair.com>
Sent: Sunday, August 14, 2011 8:05 PM
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi all !

I've just posted an Airworthiness Information Notice from
the PFA in England about a problem they have found on 2 Rebels
over there -- cracked fork ends on the stabilizer struts !!

We have never seen this here, and it might be from over-
tightening of the bolts, but -- PLEASE inspect both ends of
your stabilizer struts NOW, and regularly !! Please let the
factory know if you find anything !!

The page link is :

http://www.pattersonaerosales.com/Aircr ... chSpt.html

And the item is:

PFA Airworthiness Information Notice - Rebel tailplane strut fork end
inspection Aug. 14, 2011

If the strut forks break, the stab will fold up - and that would
spoil your whole afternoon !! :-(


......bobp
bobp@prosumers.ca
bobp@pattersys.com
http://www.Pattersys.com
http://www.PattersonAeroSales.com
http://www.amway.ca/BobPatterson

De-fenestrate now ! Linux is the answer !

Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or
persons.
Any action taken as a result of the contents of this email is totally the
responsibility of the reader.

http://www.danasoft.com/sig/pssignTux.jpg



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rick greenwood

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by rick greenwood » Sun Feb 19, 2012 8:54 pm

Thanks Wayne for the info ,had to go check right now.NO problems.Rick 233R
From: oifa@irishfield.on.ca
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Sun, 14 Aug 2011 21:14:16 -0400

I guess there's always the chance a piece got stress cracked during
machining... BUT.. I've taken care/rebuilt of a LOT of wrecked Rebels in the
last 15 years. I've seen the strut tube broken completely.. I've seen the
strut fitting pulled out of the tube by shearing the rivets (with the tube
and fitting still in tact). I've seen the fitting ripped out with the first
rivet shearing the tube and the second rivet shearing clean, again no damage
to the fitting itself. I've seen the fitting bent and still bolted to the
stab fitting. I've never seen the AN3 bolt break or the fitting forks
themselves break.

Looking at the AD picture there's a lot of interesting "tracks" on the strut
in question and it's paint.

Don't anyone get to wrapped up and concerned about the fittings you have on
your Rebel. Have a look for any "bow in" while tightening and look for any
machining stress risers before assembly and buff any out you see. Any I have
worked on have just enough clearance in the forks to fit the stab fitting.
If yours have a lot of "daylight", then I suggest they were machined wrong.

Wayne

----- Original Message -----
From: "Bob Patterson" <bobp@prosumers.ca>
To: <rebel-builders@dcsol.com>
Cc: <Shipping@murphyair.com>
Sent: Sunday, August 14, 2011 8:05 PM
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi all !

I've just posted an Airworthiness Information Notice from
the PFA in England about a problem they have found on 2 Rebels
over there -- cracked fork ends on the stabilizer struts !!

We have never seen this here, and it might be from over-
tightening of the bolts, but -- PLEASE inspect both ends of
your stabilizer struts NOW, and regularly !! Please let the
factory know if you find anything !!

The page link is :

http://www.pattersonaerosales.com/Aircr ... chSpt.html

And the item is:

PFA Airworthiness Information Notice - Rebel tailplane strut fork end
inspection Aug. 14, 2011

If the strut forks break, the stab will fold up - and that would
spoil your whole afternoon !! :-(


......bobp
bobp@prosumers.ca
bobp@pattersys.com
http://www.Pattersys.com
http://www.PattersonAeroSales.com
http://www.amway.ca/BobPatterson

De-fenestrate now ! Linux is the answer !

Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or
persons.
Any action taken as a result of the contents of this email is totally the
responsibility of the reader.

http://www.danasoft.com/sig/pssignTux.jpg



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Wayne G. O'Shea

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Wayne G. O'Shea » Sun Feb 19, 2012 8:54 pm

Just received a picture from Nig of the second broken fork from about 3 days
ago. It is broken on the exact same angle as the one shown in the AD picture
Bob supplied. Also noted is the fork has a solid impression of the washer
embedded in it suggesting it was really cranked down tight. I'm not even
sure how you get an AN3 bolt that tight without it snapping. The fork break
looks very granular in nature leading me to beleive.. from a picture... that
it had been cracked for some time and started to corrode. I'm wondering if
the stab fitting is bottoming into the fork fitting making it rigid vs being
able to rotate on the attachment bolt during severe flexing. All I know for
sure is that I'll be out with a light and a magnifying glass on the three
Rebels I have on site here today!

I have uploaded the photo to our website so you can view it as well for
comparison and so you know where to look on your own machine.

http://www.irishfield.on.ca/gallery/strutfork.jpg

Wayne

----- Original Message -----
From: "rick greenwood" <rgreenwood@hotmail.ca>
To: <rebel-builders@dcsol.com>
Sent: Sunday, August 14, 2011 11:54 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Thanks Wayne for the info ,had to go check right now.NO problems.Rick
233R
From: oifa@irishfield.on.ca
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Sun, 14 Aug 2011 21:14:16 -0400

I guess there's always the chance a piece got stress cracked during
machining... BUT.. I've taken care/rebuilt of a LOT of wrecked Rebels in
the
last 15 years. I've seen the strut tube broken completely.. I've seen the
strut fitting pulled out of the tube by shearing the rivets (with the
tube
and fitting still in tact). I've seen the fitting ripped out with the
first
rivet shearing the tube and the second rivet shearing clean, again no
damage
to the fitting itself. I've seen the fitting bent and still bolted to the
stab fitting. I've never seen the AN3 bolt break or the fitting forks
themselves break.

Looking at the AD picture there's a lot of interesting "tracks" on the
strut
in question and it's paint.

Don't anyone get to wrapped up and concerned about the fittings you have
on
your Rebel. Have a look for any "bow in" while tightening and look for
any
machining stress risers before assembly and buff any out you see. Any I
have
worked on have just enough clearance in the forks to fit the stab
fitting.
If yours have a lot of "daylight", then I suggest they were machined
wrong.

Wayne

----- Original Message -----
From: "Bob Patterson" <bobp@prosumers.ca>
To: <rebel-builders@dcsol.com>
Cc: <Shipping@murphyair.com>
Sent: Sunday, August 14, 2011 8:05 PM
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi all !

I've just posted an Airworthiness Information Notice from
the PFA in England about a problem they have found on 2 Rebels
over there -- cracked fork ends on the stabilizer struts !!

We have never seen this here, and it might be from over-
tightening of the bolts, but -- PLEASE inspect both ends of
your stabilizer struts NOW, and regularly !! Please let the
factory know if you find anything !!

The page link is :

http://www.pattersonaerosales.com/Aircr ... chSpt.html

And the item is:

PFA Airworthiness Information Notice - Rebel tailplane strut fork end
inspection Aug. 14, 2011

If the strut forks break, the stab will fold up - and that would
spoil your whole afternoon !! :-(


......bobp
bobp@prosumers.ca
bobp@pattersys.com
http://www.Pattersys.com
http://www.PattersonAeroSales.com
http://www.amway.ca/BobPatterson

De-fenestrate now ! Linux is the answer !

Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or
persons.
Any action taken as a result of the contents of this email is totally
the
responsibility of the reader.

http://www.danasoft.com/sig/pssignTux.jpg



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Walter Klatt

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Walter Klatt » Sun Feb 19, 2012 8:54 pm

Just took mine apart and checked them. Everything is still as snug and solid
as when first installed, and no signs of any cracking.

Sure would like to know more about how two in the UK could have the same
problem. I don't think there are that many Rebels there.

I wonder if they were installed without proper alignment of the bottom
flange that attaches to the tail. If that is turned the wrong way, it would
cause a pretty severe bending stress on the forks. But can't see a builder
doing that without noticing....

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Wayne
G. O'Shea
Sent: Monday, August 15, 2011 8:11 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just received a picture from Nig of the second broken fork from about 3 days

ago. It is broken on the exact same angle as the one shown in the AD picture

Bob supplied. Also noted is the fork has a solid impression of the washer
embedded in it suggesting it was really cranked down tight. I'm not even
sure how you get an AN3 bolt that tight without it snapping. The fork break
looks very granular in nature leading me to beleive.. from a picture... that

it had been cracked for some time and started to corrode. I'm wondering if
the stab fitting is bottoming into the fork fitting making it rigid vs being

able to rotate on the attachment bolt during severe flexing. All I know for
sure is that I'll be out with a light and a magnifying glass on the three
Rebels I have on site here today!

I have uploaded the photo to our website so you can view it as well for
comparison and so you know where to look on your own machine.

http://www.irishfield.on.ca/gallery/strutfork.jpg

Wayne

----- Original Message -----
From: "rick greenwood" <rgreenwood@hotmail.ca>
To: <rebel-builders@dcsol.com>
Sent: Sunday, August 14, 2011 11:54 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Thanks Wayne for the info ,had to go check right now.NO problems.Rick
233R
From: oifa@irishfield.on.ca
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Sun, 14 Aug 2011 21:14:16 -0400

I guess there's always the chance a piece got stress cracked during
machining... BUT.. I've taken care/rebuilt of a LOT of wrecked Rebels in
the
last 15 years. I've seen the strut tube broken completely.. I've seen the
strut fitting pulled out of the tube by shearing the rivets (with the
tube
and fitting still in tact). I've seen the fitting ripped out with the
first
rivet shearing the tube and the second rivet shearing clean, again no
damage
to the fitting itself. I've seen the fitting bent and still bolted to the
stab fitting. I've never seen the AN3 bolt break or the fitting forks
themselves break.

Looking at the AD picture there's a lot of interesting "tracks" on the
strut
in question and it's paint.

Don't anyone get to wrapped up and concerned about the fittings you have
on
your Rebel. Have a look for any "bow in" while tightening and look for
any
machining stress risers before assembly and buff any out you see. Any I
have
worked on have just enough clearance in the forks to fit the stab
fitting.
If yours have a lot of "daylight", then I suggest they were machined
wrong.

Wayne

----- Original Message -----
From: "Bob Patterson" <bobp@prosumers.ca>
To: <rebel-builders@dcsol.com>
Cc: <Shipping@murphyair.com>
Sent: Sunday, August 14, 2011 8:05 PM
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi all !

I've just posted an Airworthiness Information Notice from
the PFA in England about a problem they have found on 2 Rebels
over there -- cracked fork ends on the stabilizer struts !!

We have never seen this here, and it might be from over-
tightening of the bolts, but -- PLEASE inspect both ends of
your stabilizer struts NOW, and regularly !! Please let the
factory know if you find anything !!

The page link is :

http://www.pattersonaerosales.com/Aircr ... chSpt.html

And the item is:

PFA Airworthiness Information Notice - Rebel tailplane strut fork end
inspection Aug. 14, 2011

If the strut forks break, the stab will fold up - and that would
spoil your whole afternoon !! :-(


......bobp
bobp@prosumers.ca
bobp@pattersys.com
http://www.Pattersys.com
http://www.PattersonAeroSales.com
http://www.amway.ca/BobPatterson

De-fenestrate now ! Linux is the answer !

Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or
persons.
Any action taken as a result of the contents of this email is totally
the
responsibility of the reader.

http://www.danasoft.com/sig/pssignTux.jpg



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Wayne G. O'Shea

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Wayne G. O'Shea » Sun Feb 19, 2012 8:54 pm

Also curious... Nigel is it the upper attachement at the stab or the lower
attachement at the tailspring angle that broke on these two UK birds??

I cleaned and inspected all of mine today with a "fine tooth comb". No
issues.

Wayne

----- Original Message -----
From: "Walter Klatt" <Walter.Klatt@shaw.ca>
To: <rebel-builders@dcsol.com>
Sent: Monday, August 15, 2011 5:48 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just took mine apart and checked them. Everything is still as snug and
solid
as when first installed, and no signs of any cracking.

Sure would like to know more about how two in the UK could have the same
problem. I don't think there are that many Rebels there.

I wonder if they were installed without proper alignment of the bottom
flange that attaches to the tail. If that is turned the wrong way, it
would
cause a pretty severe bending stress on the forks. But can't see a builder
doing that without noticing....

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: Monday, August 15, 2011 8:11 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just received a picture from Nig of the second broken fork from about 3
days

ago. It is broken on the exact same angle as the one shown in the AD
picture

Bob supplied. Also noted is the fork has a solid impression of the washer
embedded in it suggesting it was really cranked down tight. I'm not even
sure how you get an AN3 bolt that tight without it snapping. The fork
break
looks very granular in nature leading me to beleive.. from a picture...
that

it had been cracked for some time and started to corrode. I'm wondering if
the stab fitting is bottoming into the fork fitting making it rigid vs
being

able to rotate on the attachment bolt during severe flexing. All I know
for
sure is that I'll be out with a light and a magnifying glass on the three
Rebels I have on site here today!

I have uploaded the photo to our website so you can view it as well for
comparison and so you know where to look on your own machine.

http://www.irishfield.on.ca/gallery/strutfork.jpg

Wayne

----- Original Message -----
From: "rick greenwood" <rgreenwood@hotmail.ca>
To: <rebel-builders@dcsol.com>
Sent: Sunday, August 14, 2011 11:54 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Thanks Wayne for the info ,had to go check right now.NO problems.Rick
233R
From: oifa@irishfield.on.ca
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Sun, 14 Aug 2011 21:14:16 -0400

I guess there's always the chance a piece got stress cracked during
machining... BUT.. I've taken care/rebuilt of a LOT of wrecked Rebels in
the
last 15 years. I've seen the strut tube broken completely.. I've seen
the
strut fitting pulled out of the tube by shearing the rivets (with the
tube
and fitting still in tact). I've seen the fitting ripped out with the
first
rivet shearing the tube and the second rivet shearing clean, again no
damage
to the fitting itself. I've seen the fitting bent and still bolted to
the
stab fitting. I've never seen the AN3 bolt break or the fitting forks
themselves break.

Looking at the AD picture there's a lot of interesting "tracks" on the
strut
in question and it's paint.

Don't anyone get to wrapped up and concerned about the fittings you have
on
your Rebel. Have a look for any "bow in" while tightening and look for
any
machining stress risers before assembly and buff any out you see. Any I
have
worked on have just enough clearance in the forks to fit the stab
fitting.
If yours have a lot of "daylight", then I suggest they were machined
wrong.

Wayne

----- Original Message -----
From: "Bob Patterson" <bobp@prosumers.ca>
To: <rebel-builders@dcsol.com>
Cc: <Shipping@murphyair.com>
Sent: Sunday, August 14, 2011 8:05 PM
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!




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N.Smith

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by N.Smith » Sun Feb 19, 2012 8:54 pm

Come over quick Wayne before all the good pubs are burnt down :o)
Nig

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Wayne
G. O'Shea
Sent: 16 August 2011 22:39
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Okay.. so attachement at the "man made" end (vs factory made stab attach).
Maybe they have an interference issue.. the attachment angle hasn't been
relieved enough and is bottoming in the fork just as the bolt makes the
hole. Or a bad tail spring set up with a lot of movement working the
angle/fork fitting. Maybe I should jump on a pressurized can and come check
it out in person. I could use a pint of 6X from a good UK pub !!

:O)
Wayne

----- Original Message -----
From: "N.Smith" <admin@airnig.co.uk>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, August 16, 2011 12:50 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi Wayne (and all)

The fork that broke was the lower end (fuselage end) on this latest one.
I'm
trying to find out more about the original event.

Aircraft was a 235 powered one so not excessive power as a cause.

Nig

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: 15 August 2011 23:03
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Also curious... Nigel is it the upper attachement at the stab or the lower
attachement at the tailspring angle that broke on these two UK birds??

I cleaned and inspected all of mine today with a "fine tooth comb". No
issues.

Wayne

----- Original Message -----
From: "Walter Klatt" <Walter.Klatt@shaw.ca>
To: <rebel-builders@dcsol.com>
Sent: Monday, August 15, 2011 5:48 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just took mine apart and checked them. Everything is still as snug and
solid
as when first installed, and no signs of any cracking.

Sure would like to know more about how two in the UK could have the same
problem. I don't think there are that many Rebels there.

I wonder if they were installed without proper alignment of the bottom
flange that attaches to the tail. If that is turned the wrong way, it
would
cause a pretty severe bending stress on the forks. But can't see a
builder
doing that without noticing....

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: Monday, August 15, 2011 8:11 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just received a picture from Nig of the second broken fork from about 3
days

ago. It is broken on the exact same angle as the one shown in the AD
picture

Bob supplied. Also noted is the fork has a solid impression of the washer
embedded in it suggesting it was really cranked down tight. I'm not even
sure how you get an AN3 bolt that tight without it snapping. The fork
break
looks very granular in nature leading me to beleive.. from a picture...
that

it had been cracked for some time and started to corrode. I'm wondering
if
the stab fitting is bottoming into the fork fitting making it rigid vs
being

able to rotate on the attachment bolt during severe flexing. All I know
for
sure is that I'll be out with a light and a magnifying glass on the three
Rebels I have on site here today!

I have uploaded the photo to our website so you can view it as well for
comparison and so you know where to look on your own machine.

http://www.irishfield.on.ca/gallery/strutfork.jpg

Wayne

----- Original Message -----
From: "rick greenwood" <rgreenwood@hotmail.ca>
To: <rebel-builders@dcsol.com>
Sent: Sunday, August 14, 2011 11:54 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Thanks Wayne for the info ,had to go check right now.NO problems.Rick
233R

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N.Smith

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by N.Smith » Sun Feb 19, 2012 8:54 pm

Hi Wayne (and all)

The fork that broke was the lower end (fuselage end) on this latest one. I'm
trying to find out more about the original event.

Aircraft was a 235 powered one so not excessive power as a cause.

Nig

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Wayne
G. O'Shea
Sent: 15 August 2011 23:03
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Also curious... Nigel is it the upper attachement at the stab or the lower
attachement at the tailspring angle that broke on these two UK birds??

I cleaned and inspected all of mine today with a "fine tooth comb". No
issues.

Wayne

----- Original Message -----
From: "Walter Klatt" <Walter.Klatt@shaw.ca>
To: <rebel-builders@dcsol.com>
Sent: Monday, August 15, 2011 5:48 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just took mine apart and checked them. Everything is still as snug and
solid
as when first installed, and no signs of any cracking.

Sure would like to know more about how two in the UK could have the same
problem. I don't think there are that many Rebels there.

I wonder if they were installed without proper alignment of the bottom
flange that attaches to the tail. If that is turned the wrong way, it
would
cause a pretty severe bending stress on the forks. But can't see a builder
doing that without noticing....

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: Monday, August 15, 2011 8:11 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just received a picture from Nig of the second broken fork from about 3
days

ago. It is broken on the exact same angle as the one shown in the AD
picture

Bob supplied. Also noted is the fork has a solid impression of the washer
embedded in it suggesting it was really cranked down tight. I'm not even
sure how you get an AN3 bolt that tight without it snapping. The fork
break
looks very granular in nature leading me to beleive.. from a picture...
that

it had been cracked for some time and started to corrode. I'm wondering if
the stab fitting is bottoming into the fork fitting making it rigid vs
being

able to rotate on the attachment bolt during severe flexing. All I know
for
sure is that I'll be out with a light and a magnifying glass on the three
Rebels I have on site here today!

I have uploaded the photo to our website so you can view it as well for
comparison and so you know where to look on your own machine.

http://www.irishfield.on.ca/gallery/strutfork.jpg

Wayne

----- Original Message -----
From: "rick greenwood" <rgreenwood@hotmail.ca>
To: <rebel-builders@dcsol.com>
Sent: Sunday, August 14, 2011 11:54 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Thanks Wayne for the info ,had to go check right now.NO problems.Rick
233R
From: oifa@irishfield.on.ca
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Sun, 14 Aug 2011 21:14:16 -0400

I guess there's always the chance a piece got stress cracked during
machining... BUT.. I've taken care/rebuilt of a LOT of wrecked Rebels in
the
last 15 years. I've seen the strut tube broken completely.. I've seen
the
strut fitting pulled out of the tube by shearing the rivets (with the
tube
and fitting still in tact). I've seen the fitting ripped out with the
first
rivet shearing the tube and the second rivet shearing clean, again no
damage
to the fitting itself. I've seen the fitting bent and still bolted to
the
stab fitting. I've never seen the AN3 bolt break or the fitting forks
themselves break.

Looking at the AD picture there's a lot of interesting "tracks" on the
strut
in question and it's paint.

Don't anyone get to wrapped up and concerned about the fittings you have
on
your Rebel. Have a look for any "bow in" while tightening and look for
any
machining stress risers before assembly and buff any out you see. Any I
have
worked on have just enough clearance in the forks to fit the stab
fitting.
If yours have a lot of "daylight", then I suggest they were machined
wrong.

Wayne

----- Original Message -----
From: "Bob Patterson" <bobp@prosumers.ca>
To: <rebel-builders@dcsol.com>
Cc: <Shipping@murphyair.com>
Sent: Sunday, August 14, 2011 8:05 PM
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!




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Wayne G. O'Shea

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Wayne G. O'Shea » Sun Feb 19, 2012 8:54 pm

Okay.. so attachement at the "man made" end (vs factory made stab attach).
Maybe they have an interference issue.. the attachment angle hasn't been
relieved enough and is bottoming in the fork just as the bolt makes the
hole. Or a bad tail spring set up with a lot of movement working the
angle/fork fitting. Maybe I should jump on a pressurized can and come check
it out in person. I could use a pint of 6X from a good UK pub !!

:O)
Wayne

----- Original Message -----
From: "N.Smith" <admin@airnig.co.uk>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, August 16, 2011 12:50 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi Wayne (and all)

The fork that broke was the lower end (fuselage end) on this latest one.
I'm
trying to find out more about the original event.

Aircraft was a 235 powered one so not excessive power as a cause.

Nig

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: 15 August 2011 23:03
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Also curious... Nigel is it the upper attachement at the stab or the lower
attachement at the tailspring angle that broke on these two UK birds??

I cleaned and inspected all of mine today with a "fine tooth comb". No
issues.

Wayne

----- Original Message -----
From: "Walter Klatt" <Walter.Klatt@shaw.ca>
To: <rebel-builders@dcsol.com>
Sent: Monday, August 15, 2011 5:48 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just took mine apart and checked them. Everything is still as snug and
solid
as when first installed, and no signs of any cracking.

Sure would like to know more about how two in the UK could have the same
problem. I don't think there are that many Rebels there.

I wonder if they were installed without proper alignment of the bottom
flange that attaches to the tail. If that is turned the wrong way, it
would
cause a pretty severe bending stress on the forks. But can't see a
builder
doing that without noticing....

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: Monday, August 15, 2011 8:11 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just received a picture from Nig of the second broken fork from about 3
days

ago. It is broken on the exact same angle as the one shown in the AD
picture

Bob supplied. Also noted is the fork has a solid impression of the washer
embedded in it suggesting it was really cranked down tight. I'm not even
sure how you get an AN3 bolt that tight without it snapping. The fork
break
looks very granular in nature leading me to beleive.. from a picture...
that

it had been cracked for some time and started to corrode. I'm wondering
if
the stab fitting is bottoming into the fork fitting making it rigid vs
being

able to rotate on the attachment bolt during severe flexing. All I know
for
sure is that I'll be out with a light and a magnifying glass on the three
Rebels I have on site here today!

I have uploaded the photo to our website so you can view it as well for
comparison and so you know where to look on your own machine.

http://www.irishfield.on.ca/gallery/strutfork.jpg

Wayne

----- Original Message -----
From: "rick greenwood" <rgreenwood@hotmail.ca>
To: <rebel-builders@dcsol.com>
Sent: Sunday, August 14, 2011 11:54 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Thanks Wayne for the info ,had to go check right now.NO problems.Rick
233R

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Terry Dazey

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Terry Dazey » Sun Feb 19, 2012 8:54 pm

I have been getting repeats for several days now and another 50 or so this morning.


I had an interference issue there and had to take out some additional
material from the angle. I can see how that could be a common occurance
since it is up to the builder to make that part and I have also noticed
that side to side rocking of the fuselage will cause that whole assembly to
flex laterally. If the angle was in contact with the inner surface of the
strut fork, that might cause a failure. I'm not sure how to stop that
lateral flex. I was considering remaking the fittings that bolt to the side
of the fin post (ts 3?) Out of steel.



Sent from my Verizon Wireless 4GLTE smartphone

----- Reply message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <rebel-builders@dcsol.com>
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Tue, Aug 16, 2011 3:39 pm


Okay.. so attachement at the "man made" end (vs factory made stab attach).
Maybe they have an interference issue.. the attachment angle hasn't been
relieved enough and is bottoming in the fork just as the bolt makes the
hole. Or a bad tail spring set up with a lot of movement working the
angle/fork fitting. Maybe I should jump on a pressurized can and come
check
it out in person. I could use a pint of 6X from a good UK pub !!

:O)
Wayne

----- Original Message -----
From: "N.Smith" <admin@airnig.co.uk>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, August 16, 2011 12:50 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi Wayne (and all)

The fork that broke was the lower end (fuselage end) on this latest one.
I'm
trying to find out more about the original event.

Aircraft was a 235 powered one so not excessive power as a cause.

Nig

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: 15 August 2011 23:03
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Also curious... Nigel is it the upper attachement at the stab or the
lower
attachement at the tailspring angle that broke on these two UK birds??

I cleaned and inspected all of mine today with a "fine tooth comb". No
issues.

Wayne

----- Original Message -----
From: "Walter Klatt" <Walter.Klatt@shaw.ca>
To: <rebel-builders@dcsol.com>
Sent: Monday, August 15, 2011 5:48 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just took mine apart and checked them. Everything is still as snug and
solid
as when first installed, and no signs of any cracking.

Sure would like to know more about how two in the UK could have the same
problem. I don't think there are that many Rebels there.

I wonder if they were installed without proper alignment of the bottom
flange that attaches to the tail. If that is turned the wrong way, it
would
cause a pretty severe bending stress on the forks. But can't see a
builder
doing that without noticing....

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: Monday, August 15, 2011 8:11 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Just received a picture from Nig of the second broken fork from about 3
days

ago. It is broken on the exact same angle as the one shown in the AD
picture

Bob supplied. Also noted is the fork has a solid impression of the
washer
embedded in it suggesting it was really cranked down tight. I'm not even
sure how you get an AN3 bolt that tight without it snapping. The fork
break
looks very granular in nature leading me to beleive.. from a picture...
that

it had been cracked for some time and started to corrode. I'm wondering
if
the stab fitting is bottoming into the fork fitting making it rigid vs
being

able to rotate on the attachment bolt during severe flexing. All I know
for
sure is that I'll be out with a light and a magnifying glass on the
three
Rebels I have on site here today!

I have uploaded the photo to our website so you can view it as well for
comparison and so you know where to look on your own machine.

http://www.irishfield.on.ca/gallery/strutfork.jpg

Wayne

----- Original Message -----
From: "rick greenwood" <rgreenwood@hotmail.ca>
To: <rebel-builders@dcsol.com>
Sent: Sunday, August 14, 2011 11:54 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!




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Mike Davis

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Mike Davis » Sun Feb 19, 2012 8:54 pm

Terry,

Since installing the update late last night, the logs do not show any entry
to you beyond attempt #1... so, at this point no repeats since the update.

Mike

----- Original Message -----
From: "Terry Dazey" <dazey@TurboUSA.com>
To: <rebel-builders@dcsol.com>
Sent: Thursday, August 18, 2011 5:59 AM
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

I have been getting repeats for several days now and another 50 or so this
morning.


I had an interference issue there and had to take out some additional
material from the angle. I can see how that could be a common occurance
since it is up to the builder to make that part and I have also noticed
that side to side rocking of the fuselage will cause that whole assembly
to
flex laterally. If the angle was in contact with the inner surface of the
strut fork, that might cause a failure. I'm not sure how to stop that
lateral flex. I was considering remaking the fittings that bolt to the
side
of the fin post (ts 3?) Out of steel.



Sent from my Verizon Wireless 4GLTE smartphone

----- Reply message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <rebel-builders@dcsol.com>
Subject: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Tue, Aug 16, 2011 3:39 pm


Okay.. so attachement at the "man made" end (vs factory made stab
attach).
Maybe they have an interference issue.. the attachment angle hasn't been
relieved enough and is bottoming in the fork just as the bolt makes the
hole. Or a bad tail spring set up with a lot of movement working the
angle/fork fitting. Maybe I should jump on a pressurized can and come
check
it out in person. I could use a pint of 6X from a good UK pub !!

:O)
Wayne

----- Original Message -----
From: "N.Smith" <admin@airnig.co.uk>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, August 16, 2011 12:50 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Hi Wayne (and all)

The fork that broke was the lower end (fuselage end) on this latest one.
I'm
trying to find out more about the original event.

Aircraft was a 235 powered one so not excessive power as a cause.

Nig

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Wayne
G. O'Shea
Sent: 15 August 2011 23:03
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Also curious... Nigel is it the upper attachement at the stab or the
lower
attachement at the tailspring angle that broke on these two UK birds??

I cleaned and inspected all of mine today with a "fine tooth comb". No
issues.

Wayne

----- Original Message -----
From: "Walter Klatt" <Walter.Klatt@shaw.ca>
To: <rebel-builders@dcsol.com>
Sent: Monday, August 15, 2011 5:48 PM
Subject: RE: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!




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Terry Dazey

[rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!

Post by Terry Dazey » Sun Feb 19, 2012 8:54 pm

Hello Mike:

Yes. Looks good from here.

Thank you for the great job on the Rebel newsgroup files and archives not to mention cyberspace (XX's and OO's)detective work.

Talk later.

Over-and-out . . .

Terry Dazey
R662 (slow, but making progress)

--- mike.davis@dcsol.com wrote:

From: "Mike Davis" <mike.davis@dcsol.com>
To: <rebel-builders@dcsol.com>
Subject: Re: [rebel-builders] Rebel tail strut fork ends - IMPORTANT !!!
Date: Thu, 18 Aug 2011 06:39:50 -0800

Terry,

Since installing the update late last night, the logs do not show any entry
to you beyond attempt #1... so, at this point no repeats since the update.

Mike









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