---------------------------------------------------------- Commander-List Digest Archive --- Total Messages Posted Mon 08/13/07: 4 ---------------------------------------------------------- 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 _____________________________________ Time: 12:29:55 AM PST US From: "Barry Collman" Subject: Re: Commander-List: Data plates 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 _____________________________________ Time: 07:51:10 PM PST US From: "Robert S. Randazzo" 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 3 _____________________________________ Time: 08:08:25 PM PST US From: "nico css" 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 ________________________________ Message 4 _____________________________________ Time: 11:21:34 PM PST US From: "Robert S. Randazzo" Subject: RE: Commander-List: 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 __________ NOD32 2458 (20070813) Information __________ ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message commander-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Commander-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/commander-list Browse Digests http://www.matronics.com/digest/commander-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.