Today's Message Index:
----------------------
1. 12:29 AM - Re: Data plates (Barry Collman)
2. 07:51 PM - Engine Through-Stud Sheer... (Robert S. Randazzo)
3. 08:08 PM - Re: Engine Through-Stud Sheer... (nico css)
4. 11:21 PM - Re: Engine Through-Stud Sheer... (Robert S. Randazzo)
Message 1
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Hi Nico,
Thanks, for this link and the other two!
Best Regards,
Barry
----- Original Message -----
From: nico css
To: commander-list@matronics.com
Sent: Monday, August 13, 2007 12:06 AM
Subject: RE: Commander-List: Data plates
A clear data plate is here
http://www.teletuition.org/documents/Aviation/AeroCommanders/N2732B/HPIM0
278.JPG
Nico
-------------------------------------------------------------------------
-----
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Barry
Collman
Sent: Saturday, August 11, 2007 4:10 AM
To: commander-list@matronics.com
Subject: Commander-List: Data plates
Hi All,
If anyone on the list owns a Commander, between Serial Numbers 691 and
895, could take a .jpg image of their Data Plate, I'll be most grateful.
I'm trying to ascertain when the location for the Manufacturer was
changed from "Tulakes Airport, Oklahoma City, Okla." to "Bethany,
Okla.".
Your help will be very much appreciated.
Very Best Regards,
Barry
Message 2
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| Subject: | Engine Through-Stud Sheer... |
Commanders-
Seems not ALL the news surrounding N414C's return to flight is good.
One of the dozen-or-so squawks that we listed on the airplane after purchase
was that the left engine had a tendency to produce oil in the cowling. The
usual minor drips and items were found and cleared up during the two year
down time- and a series of engine runs seemed to corroborate that the oil
seepage was fixed.
Unfortunately- the seepage returned during our test flight of last Friday-
so today they opened up the cowl and started searching once again. The
result was that they discovered that one of the mid-case through studs was
sheered inside the case. Additionally- the inner-most cooling fin on each
of the #3/#4 cylinders shows a very small impact dent where (we're assuming
here) the free ends of the stud impacted the fins at the time it sheered?
Tomorrow is going to be an interesting day- as the #3/#4 cylinders will get
pulled- and all of the surrounding area will get a good looking over. As
would be expected- a call to TCM was rebuffed as they lack the corporate
responsibility to provide any type of data support for the engine.
I thought I'd run the squawk by you all to see if anyone has had any similar
experience? Anyone ever heard of such a thing? Any ideas what might cause
it ? Any guesses as to whether we are looking at a minor, known problem or
a more serious warning sign of potential catastrophic failure?
Obviously the experts in the shop will be making the decisions surrounding
and inspection/replacement of the stud, but there is a tremendous amount of
expertise here- so I thought I'd solicit..
Robert S. Randazzo
N414C
Message 3
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| Subject: | Engine Through-Stud Sheer... |
Do you think it would shear off if wasn't over-torqued? If the stud failed
due to abuse on a previous occasion, perhaps replacing them all might be
considered. Just guessing.
_____
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Robert S.
Randazzo
Sent: Monday, August 13, 2007 7:50 PM
Subject: Commander-List: Engine Through-Stud Sheer...
Commanders-
Seems not ALL the news surrounding N414C's return to flight is good.
One of the dozen-or-so squawks that we listed on the airplane after purchase
was that the left engine had a tendency to produce oil in the cowling. The
usual minor drips and items were found and cleared up during the two year
down time- and a series of engine runs seemed to corroborate that the oil
seepage was fixed.
Unfortunately- the seepage returned during our test flight of last Friday-
so today they opened up the cowl and started searching once again. The
result was that they discovered that one of the mid-case through studs was
sheered inside the case. Additionally- the inner-most cooling fin on each
of the #3/#4 cylinders shows a very small impact dent where (we're assuming
here) the free ends of the stud impacted the fins at the time it sheered?
Tomorrow is going to be an interesting day- as the #3/#4 cylinders will get
pulled- and all of the surrounding area will get a good looking over. As
would be expected- a call to TCM was rebuffed as they lack the corporate
responsibility to provide any type of data support for the engine.
I thought I'd run the squawk by you all to see if anyone has had any similar
experience? Anyone ever heard of such a thing? Any ideas what might cause
it ? Any guesses as to whether we are looking at a minor, known problem or
a more serious warning sign of potential catastrophic failure?
Obviously the experts in the shop will be making the decisions surrounding
and inspection/replacement of the stud, but there is a tremendous amount of
expertise here- so I thought I'd solicit..
Robert S. Randazzo
N414C
Message 4
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| Subject: | Engine Through-Stud Sheer... |
Nico-
Seems reasonable that over-torque could cause it- but the small dents on the
cooling fins makes me wonder if it wasn't some type of stress load. I'm not
much of an engineer, however.
RSR
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of nico css
Sent: Monday, August 13, 2007 8:08 PM
Subject: RE: Commander-List: Engine Through-Stud Sheer...
Do you think it would shear off if wasn't over-torqued? If the stud failed
due to abuse on a previous occasion, perhaps replacing them all might be
considered. Just guessing.
_____
From: owner-commander-list-server@matronics.com
[mailto:owner-commander-list-server@matronics.com] On Behalf Of Robert S.
Randazzo
Sent: Monday, August 13, 2007 7:50 PM
Subject: Commander-List: Engine Through-Stud Sheer...
Commanders-
Seems not ALL the news surrounding N414C's return to flight is good.
One of the dozen-or-so squawks that we listed on the airplane after purchase
was that the left engine had a tendency to produce oil in the cowling. The
usual minor drips and items were found and cleared up during the two year
down time- and a series of engine runs seemed to corroborate that the oil
seepage was fixed.
Unfortunately- the seepage returned during our test flight of last Friday-
so today they opened up the cowl and started searching once again. The
result was that they discovered that one of the mid-case through studs was
sheered inside the case. Additionally- the inner-most cooling fin on each
of the #3/#4 cylinders shows a very small impact dent where (we're assuming
here) the free ends of the stud impacted the fins at the time it sheered?
Tomorrow is going to be an interesting day- as the #3/#4 cylinders will get
pulled- and all of the surrounding area will get a good looking over. As
would be expected- a call to TCM was rebuffed as they lack the corporate
responsibility to provide any type of data support for the engine.
I thought I'd run the squawk by you all to see if anyone has had any similar
experience? Anyone ever heard of such a thing? Any ideas what might cause
it ? Any guesses as to whether we are looking at a minor, known problem or
a more serious warning sign of potential catastrophic failure?
Obviously the experts in the shop will be making the decisions surrounding
and inspection/replacement of the stud, but there is a tremendous amount of
expertise here- so I thought I'd solicit..
Robert S. Randazzo
N414C
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