---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 02/20/12: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:16 PM - Yak elevator (Chris Wise) 2. 01:28 PM - Re: Yak elevator (cjpilot710@aol.com) 3. 02:06 PM - Re: Yak elevator (Chris Wise) 4. 02:07 PM - Re: Yak elevator (Walter Lannon) 5. 03:14 PM - Re: Yak elevator (Vic) 6. 03:34 PM - Re: Re: Yak elevator (Chris Wise) 7. 05:53 PM - Re: Yak elevator (A. Dennis Savarese) 8. 06:58 PM - Re: Yak elevator (Chris Wise) 9. 07:06 PM - Re: Yak elevator (Walter Lannon) ________________________________ Message 1 _____________________________________ Time: 01:16:46 PM PST US From: "Chris Wise" Subject: Yak-List: Yak elevator G'Day All, Can someone please advise of the problem with the Yak elevator and what the fix is. I would greatly appreciate some photo's of the problem and the fix if anyone has any. Thanks and cheers, Chris Wise. (Downunder) ________________________________ Message 2 _____________________________________ Time: 01:28:40 PM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: Yak elevator Chris, I assure you are referring to some crashes. There are very close clearances of control horns to air frame in the tail of the Yaks. Any kin d of foreign object that happen to get into that area, will almost certainly ja m it. Therefore it behooves one to check regularly for ANYTHING that might migrate back there. This would include anything that might fall out of on e's pockets, particularly during acro. Although this is true of ANY airplane, the Yak is very susceptible. Are "fix's". Jim "Pappy" Goolsby In a message dated 2/20/2012 4:16:53 P.M. Eastern Standard Time, wise@txc.net.au writes: G=99Day All, Can someone please advise of the problem with the Yak elevator and what the fix is. I would greatly appreciate some photo=99s of the problem and the fix if anyone has any. Thanks and cheers, Chris Wise. (Downunder) (http://www.matronics.com/Navigator?Yak-List) (http://www.matronics.com/contribution) ________________________________ Message 3 _____________________________________ Time: 02:06:59 PM PST US From: "Chris Wise" Subject: RE: Yak-List: Yak elevator G=99Day Pappy, Thanks for that. I am fully aware of foreign objects and I believe that that was the reason for the crash in New Zealand. Was it a screwdriver that jammed the elevator? What I am trying to determine, is as I understand, a problem in the tail sector, is it the elevator bellcrank? I was told on Sunday that the Yaks tailplanes are now subject to a 25 hour inspection schedule due to some failure. So what is the problem? What is the fix? Does anyone have any photographs relating to this? Thanks and cheers, Chris. From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of cjpilot710@aol.com Sent: Tuesday, 21 February 2012 7:58 AM Subject: Re: Yak-List: Yak elevator Chris, I assure you are referring to some crashes. There are very close clearances of control horns to air frame in the tail of the Yaks. Any kind of foreign object that happen to get into that area, will almost certainly jam it. Therefore it behooves one to check regularly for ANYTHING that might migrate back there. This would include anything that might fall out of one's pockets, particularly during acro. Although this is true of ANY airplane, the Yak is very susceptible. Are "fix's". Jim "Pappy" Goolsby In a message dated 2/20/2012 4:16:53 P.M. Eastern Standard Time, wise@txc.net.au writes: G=99Day All, Can someone please advise of the problem with the Yak elevator and what the fix is. I would greatly appreciate some photo=99s of the problem and the fix if anyone has any. Thanks and cheers, Chris Wise. (Downunder) ="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com /Navigator?Yak-List s.matronics.com/">http://forums.matronics.com p://www.matronics.com/contribution">http://www.matronics.com/contribution ________________________________ Message 4 _____________________________________ Time: 02:07:54 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: Yak elevator I addition to the =9Cforeign object=9D item there is a problem with fatigue cracking of the elevator bellcrank (Yak 52) and loss of elevator control. I do not know all the details but believe there is an airworthiness directive on the subject. Suggest you contact Richard Goode in the UK. Walt From: cjpilot710@aol.com Sent: Monday, February 20, 2012 1:27 PM Subject: Re: Yak-List: Yak elevator Chris, I assure you are referring to some crashes. There are very close clearances of control horns to air frame in the tail of the Yaks. Any kind of foreign object that happen to get into that area, will almost certainly jam it. Therefore it behooves one to check regularly for ANYTHING that might migrate back there. This would include anything that might fall out of one's pockets, particularly during acro. Although this is true of ANY airplane, the Yak is very susceptible. Are "fix's". Jim "Pappy" Goolsby In a message dated 2/20/2012 4:16:53 P.M. Eastern Standard Time, wise@txc.net.au writes: G=99Day All, Can someone please advise of the problem with the Yak elevator and what the fix is. I would greatly appreciate some photo=99s of the problem and the fix if anyone has any. Thanks and cheers, Chris Wise. (Downunder) ="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com /Navigator?Yak-List s.matronics.com/">http://forums.matronics.com p://www.matronics.com/contribution">http://www.matronics.com/contribution ________________________________ Message 5 _____________________________________ Time: 03:14:20 PM PST US Subject: Yak-List: Re: Yak elevator From: "Vic" Hi Chris, this problem is specific for the 52 and and you are running an 18 T ? If I remember correctly Andrey Gluchov has told me that the replacement items are copied in steel to avoid cracks in the elevator aluminium bell cranks. There must have been a series which was not manufactured according to original design. Cheers Vic Read this topic online here: http://forums.matronics.com/viewtopic.php?p=366756#366756 ________________________________ Message 6 _____________________________________ Time: 03:34:57 PM PST US From: "Chris Wise" Subject: RE: Yak-List: Re: Yak elevator G'day Vic, Yes, I am running a 18T. I have 2 friends with 52's and they raised the subject with me. Plus my LAME has a number of 52's as well as 18's that he looks after and is also interested in any information on the subject. I have been nominated as the gopher to source the info. Bugger is'nt it. Thanks and cheers, Chris. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Vic Sent: Tuesday, 21 February 2012 9:43 AM Subject: Yak-List: Re: Yak elevator Hi Chris, this problem is specific for the 52 and and you are running an 18 T ? If I remember correctly Andrey Gluchov has told me that the replacement items are copied in steel to avoid cracks in the elevator aluminium bell cranks. There must have been a series which was not manufactured according to original design. Cheers Vic Read this topic online here: http://forums.matronics.com/viewtopic.php?p=366756#366756 ________________________________ Message 7 _____________________________________ Time: 05:53:14 PM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Yak elevator --- MIME Errors - No Plain-Text Section Found --- A message with no text/plain MIME section was received. The entire body of the message was removed. Please resend the email using Plain Text formatting. HOTMAIL is notorious for only including an HTML section in their client's default configuration. If you're using HOTMAIL, please see your email application's settings and switch to a default mail option that uses "Plain Text". --- MIME Errors No Plain-Text Section Found --- ________________________________ Message 8 _____________________________________ Time: 06:58:09 PM PST US From: "Chris Wise" Subject: RE: Yak-List: Yak elevator Thanks Dennis. It is becoming very clear. Cheers, Chris. From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese Sent: Tuesday, 21 February 2012 12:22 PM Subject: Re: Yak-List: Yak elevator >From what I understand Chris, there WAS a Yak 52 where the elevator bellcrank cracked at the point where the elevator counterweight is mounted. I personally have not seen a cracked elevator bellcrank. But that certainly doesn't mean there aren't any out there. The fix is replacing the old with a new elevator bellcrank. The attached information should answer all your questions. Dennis A. Dennis Savarese 334-285-6263 334-546-8182 (cell) Skype: Yakguy1 www.yak-52.com On 2/20/2012 4:05 PM, Chris Wise wrote: G=99Day Pappy, Thanks for that. I am fully aware of foreign objects and I believe that that was the reason for the crash in New Zealand. Was it a screwdriver that jammed the elevator? What I am trying to determine, is as I understand, a problem in the tail sector, is it the elevator bellcrank? I was told on Sunday that the Yaks tailplanes are now subject to a 25 hour inspection schedule due to some failure. So what is the problem? What is the fix? Does anyone have any photographs relating to this? Thanks and cheers, Chris. From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of cjpilot710@aol.com Sent: Tuesday, 21 February 2012 7:58 AM Subject: Re: Yak-List: Yak elevator Chris, I assure you are referring to some crashes. There are very close clearances of control horns to air frame in the tail of the Yaks. Any kind of foreign object that happen to get into that area, will almost certainly jam it. Therefore it behooves one to check regularly for ANYTHING that might migrate back there. This would include anything that might fall out of one's pockets, particularly during acro. Although this is true of ANY airplane, the Yak is very susceptible. Are "fix's". Jim "Pappy" Goolsby In a message dated 2/20/2012 4:16:53 P.M. Eastern Standard Time, wise@txc.net.au writes: G=99Day All, Can someone please advise of the problem with the Yak elevator and what the fix is. I would greatly appreciate some photo=99s of the problem and the fix if anyone has any. Thanks and cheers, Chris Wise. (Downunder) ="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com /Navigator?Yak-List s.matronics.com/">http://forums.matronics.com p://www.matronics.com/contribution">http://www.matronics.com/contribution http://www.matronics.com/Navigator?Yak-List http://forums.matronics.com http://www.matronics.com/contribution ________________________________ Message 9 _____________________________________ Time: 07:06:29 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: Yak elevator Hi Dennis; A cracked one was found here a few months back just after the problem was first posted on the list. It was found during an inspection generated by that information. The list works! Walt From: A. Dennis Savarese Sent: Monday, February 20, 2012 5:51 PM Subject: Re: Yak-List: Yak elevator >From what I understand Chris, there WAS a Yak 52 where the elevator bellcrank cracked at the point where the elevator counterweight is mounted. I personally have not seen a cracked elevator bellcrank. But that certainly doesn't mean there aren't any out there. The fix is replacing the old with a new elevator bellcrank. The attached information should answer all your questions. Dennis A. Dennis Savarese 334-285-6263 334-546-8182 (cell) Skype: Yakguy1 www.yak-52.com On 2/20/2012 4:05 PM, Chris Wise wrote: G=99Day Pappy, Thanks for that. I am fully aware of foreign objects and I believe that that was the reason for the crash in New Zealand. Was it a screwdriver that jammed the elevator? What I am trying to determine, is as I understand, a problem in the tail sector, is it the elevator bellcrank? I was told on Sunday that the Yaks tailplanes are now subject to a 25 hour inspection schedule due to some failure. So what is the problem? What is the fix? Does anyone have any photographs relating to this? Thanks and cheers, Chris. From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of cjpilot710@aol.com Sent: Tuesday, 21 February 2012 7:58 AM To: yak-list@matronics.com Subject: Re: Yak-List: Yak elevator Chris, I assure you are referring to some crashes. There are very close clearances of control horns to air frame in the tail of the Yaks. Any kind of foreign object that happen to get into that area, will almost certainly jam it. Therefore it behooves one to check regularly for ANYTHING that might migrate back there. This would include anything that might fall out of one's pockets, particularly during acro. Although this is true of ANY airplane, the Yak is very susceptible. Are "fix's". Jim "Pappy" Goolsby In a message dated 2/20/2012 4:16:53 P.M. Eastern Standard Time, wise@txc.net.au writes: G=99Day All, Can someone please advise of the problem with the Yak elevator and what the fix is. I would greatly appreciate some photo=99s of the problem and the fix if anyone has any. Thanks and cheers, Chris Wise. 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