Matronics Email Lists :: View topic - 601XL Wing Failure 4/7/2008

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

601XL Wing Failure 4/7/2008
Goto page 1, 2, 3 Next

Matronics Email Lists Forum Index -> Zenith-List

View previous topic :: View next topic

Author Message

Matt Ronics

Joined: 30 Apr 2007
Posts: 22

Posted: Tue Apr 22, 2008 10:34 am Post subject: 601XL Wing Failure 4/7/2008

If Zenith had any sense of responsibility they would ground the XL fleet (insofar as they can advise) pending further review of this problem (meaning until the problem is found and dealt with...no more pictures of sandbags).   It's one thing to plug and chug on a computer then throw sandbags on a structure and call it sound.



Anyone ever hear of the de Havilland Comet?  Look it up and read.  Serious design problem found only after fleet started operations.  Read about Phase IV of pharmaceutical trials...which monitors medications for problems once released to the general public (monitoring for problems that wouldn't have been noticed in the earlier smaller trials).  While I don't have the numbers on XL fleet hours vs wing folds, I would bet dollars to donuts that there is a statistically significant finding there.  It would seem that Zenith is betting their business (and people's lives) on the notion that pilots just don't fly their planes correctly.   



Some of you have a "bite of your nose to spite you face" approach to experimental aviation.  Well, I'm a homebuilder and pilot too.  If we don't police ourselves, we get policed.  



At any rate, rather at "this rate" of accidents, a lawsuit will come sooner or later that will force someone's hand...

larry(at)macsmachine.com
Guest

Posted: Tue Apr 22, 2008 11:25 am Post subject: 601XL Wing Failure 4/7/2008

Hi guys,

The frequency of this problem compared with the common ones is too low 

to be completely Zenith's problem.  When you sell kits, you entertain 

the idea that there are at least a percentage of the builders that 

couldn't or wouldn't build or fly to recommended guidelines.  The 

prospect of a defect which makes it easy to foul the strength of the 

lower spar caps and surrounding wing structure is a possibility.  I'd 

still contend that people that stay with the plans and and build 

strictly to the drawings are never going to see a problem. If you read 

the ntsb records for the 601 of recent, you'd probably come to the same 

conclusion.



Larry McFarland 601HDS at www.macsmachine.com



Matt Ronics wrote:

 	  Quote: 	
		   



 If Zenith had any sense of responsibility they would ground the XL fleet (insofar as they can advise) pending further review of this problem (meaning until the problem is found and dealt with...no more pictures of sandbags).   It's one thing to plug and chug on a computer then throw sandbags on a structure and call it sound.



 Anyone ever hear of the de Havilland Comet?  Look it up and read.  Serious design problem found only after fleet started operations.  Read about Phase IV of pharmaceutical trials...which monitors medications for problems once released to the general public (monitoring for problems that wouldn't have been noticed in the earlier smaller trials).  While I don't have the numbers on XL fleet hours vs wing folds, I would bet dollars to donuts that there is a statistically significant finding there.  It would seem that Zenith is betting their business (and people's lives) on the notion that pilots just don't fly their planes correctly.   



 Some of you have a "bite of your nose to spite you face" approach to experimental aviation.  Well, I'm a homebuilder and pilot too.  If we don't police ourselves, we get policed.  



 At any rate, rather at "this rate" of accidents, a lawsuit will come sooner or later that will force someone's hand...





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=178498#178498

Matt Ronics

Joined: 30 Apr 2007
Posts: 22

Posted: Tue Apr 22, 2008 11:49 am Post subject: Re: 601XL Wing Failure 4/7/2008

 	  larry(at)macsmachine.com wrote: 	
		   I'd 

still contend that people that stay with the plans and and build 

strictly to the drawings are never going to see a problem. If you read 

the ntsb records for the 601 of recent, you'd probably come to the same 

conclusion.

	




The accident discussed here involves a plane that was manufactured by the Czech Aircraft Works (I don't know if one would call this a factory built or not).  I don't know anything about Czech, but insofar as they previously manufactured aircraft under agreement with Zenith, I would ASSuME that Czech could manufacture an aircraft with at least the competency of the average homebuilder.

jmaynard

Joined: 27 Feb 2008
Posts: 394
Location: Fairmont, MN (FRM)

Posted: Tue Apr 22, 2008 12:00 pm Post subject: 601XL Wing Failure 4/7/2008

On Tue, Apr 22, 2008 at 02:22:19PM -0500, LarryMcFarland wrote:

 	  Quote: 	
		   I'd still contend that people that stay with the plans and and build 

 strictly to the drawings are never going to see a problem.


	


Except that we've now had two factory-built aircraft that appear to have had

inflight breakups... While it's too soon to expect a final report from the

NTSB on the Florida crash, it would be nice if they'd say what happened in

Yuba City.

-- 

Jay Maynard, K5ZC                   http://www.conmicro.com

http://jmaynard.livejournal.com      http://www.tronguy.net

Fairmont, MN (FRM)                        (Yes, that's me!)

AMD Zodiac CH601XLi N55ZC (ordered 17 March, delivery 2 June)

_________________
Jay Maynard, K5ZC
AMD Zodiac XLi N55ZC

Scotsman

Joined: 27 Aug 2007
Posts: 89
Location: Johannesburg, South Africa

Posted: Tue Apr 22, 2008 12:17 pm Post subject: Re: 601XL Wing Failure 4/7/2008

Is this the same incident as sun n fun one or is it another?   while i understand that we should not speculate on the cause it does make me wonder then on what "factual" basis zenith released the elevator modification. Was there direct evidence of over deflection at high speed or was the mod based on speculation as to likely cause. Getting quite tired of the lack of clarity from all parties regarding the accidents. J

Terry Phillips

Joined: 11 Jan 2006
Posts: 346
Location: Corvallis, MT

Posted: Tue Apr 22, 2008 12:49 pm Post subject: 601XL Wing Failure 4/7/2008

At 11:34 AM 4/22/2008 -0700, you wrote:

 	  Quote: 	
		  If Zenith had any sense of responsibility they would ground the XL fleet 

(insofar as they can advise) pending further review of this problem 

(meaning until the problem is found and dealt with...no more pictures of 

sandbags).   It's one thing to plug and chug on a computer then throw 

sandbags on a structure and call it sound.


	


I'll not comment on what Zenith should or should not do.



I want to address the issue of an independent engineering analysis of the 

601XL wing that was raised some months ago, I believe following the 

Barcelona accident.



Andy Shontz had started a thread asking for Zenith-Listers to respond if 

they would be willing to financially support an engineering analysis of the 

601XL wing. Andy was not able to pursue the analysis, so I asked a former 

colleague, Don Rabern (who is now Dean of Engineering at Embry-Riddle 

Aeronautical Univerisity, Prescott, Arizona), if he could recommend someone 

who would be both capable of and interested in doing the analysis. Don 

responded with two names. After a few days of working our way through their 

spam filters, I have established contact with Mark Sensmeier, an Assistant 

Professor of Engineering with a B.S. in Aeronautical and Astronautical 

Engineering from Purdue University and a Ph.D. in Engineering Mechanics 

from Virginia Polytechnic Institute and State University. He is interested 

and we are planning to talk later this week about the problem.



Assuming that our talks are productive, my plan is to approach the List 

again to solicit real cash (as opposed to expressions of interest) so that 

we can develop some sort of contract for the work to be done and the amount 

to be paid. Don suggested that it might be "great fun" to test an actual 

wing in their structures lab. With a bit of luck, I may finish my right 

wing in an appropriate time frame, and I *might* be willing to have them do 

some (non-destructive) testing on my wing. We will have to wait and see if 

that looks to be worthwhile.



I would envision establishing a bank account for something like the "Zenith 

Builders Analysis Group" to handle the money. There are two other 601 

builders in my neighborhood, one of whom could provide a second signature 

on all checks and/or withdrawals to provide some fiscal discipline for the 

"Group."



I am posting this as a progress report. Comments and/or suggestions are 

welcome. I would be happy to send to any interested person my informational 

emails to Mark .



Terry



Terry Phillips

ttp44~at~rkymtn.net

Corvallis MT

601XL/Jab 3300 s .. l .. o .. o .. w build kit - Tail, flaps, & ailerons 

are done; working on the wings

http://www.mykitlog.com/N47TP/

_________________
Terry Phillips
Corvallis, MT
ttp44<at>rkymtn.net
Zenith 601XL/Jab 3300 slow build kit - Tail feathers done; working on the wings.

GBzodiflyer

Joined: 22 Apr 2008
Posts: 7

Posted: Tue Apr 22, 2008 1:33 pm Post subject: Re: 601XL Wing Failure 4/7/2008

Hi Guys , new to this list .

But not to the aircraft , I currently own a 601 xl  tail dragger which i built and have 100 hrs on , this was a czaw 49% kit , and has some minor differences , ie composite main gear etc , so structurally i believe the same as the  US version , also built and owned a ch601 ul again with around 140 hrs . Have overseen 6 or more kit builds .

as an engineer , for more years than i care to remember , i read these accident reports with interest , especially when my backside is at risk .

The eye witness reports indicate some rolling and yawing before the fold ,

the report says that the spars were in tact but bent  , but what about the rear attach point ? have any tests been done sand bags and all , to see what happens when you loose that rear fixing ,  the mechanics of what happens with a non vertical  leaning main-spar are quite frightening , then couple that to the xl flap drive arrangement .

 for example - you loose the rear attach, the wing will go negative, that then will force the flap down , and thus aggravate the problem . 

As an owner and builder  of this sporty design , with a close friend which has just spent his hard earned wages on a new xl kit,  I now feel very strongly that all avenues of failure must be explored .  pilot error  will always be with us , but structural  failure is a real concern .

stshuck2(at)yahoo.com
Guest

Posted: Tue Apr 22, 2008 1:54 pm Post subject: 601XL Wing Failure 4/7/2008

Terry, You have my support.We probably should start keeping track of all those interested in supporting with cash so we can finally get these tests complete and we can fly, (or not fly)with safety and elation.

  Steve Shuck

  N8830C

  2006 601XL Jabiru 3300



Terry Phillips <ttp44(at)rkymtn.net> wrote:

  [quote]--> Zenith-List message posted by: Terry Phillips 



At 11:34 AM 4/22/2008 -0700, you wrote:

 	  Quote: 	
		  If Zenith had any sense of responsibility they would ground the XL fleet 

(insofar as they can advise) pending further review of this problem 

(meaning until the problem is found and dealt with...no more pictures of 

sandbags). It's one thing to plug and chug on a computer then throw 

sandbags on a structure and call it sound.


	


I'll not comment on what  Zenith should or should not do.



I want to address the issue of an independent engineering analysis of the 

601XL wing that was raised some months ago, I believe following the 

Barcelona accident.



Andy Shontz had started a thread asking for Zenith-Listers to respond if 

they would be willing to financially support an engineering analysis of the 

601XL wing. Andy was not able to pursue the analysis, so I asked a former 

colleague, Don Rabern (who is now Dean of Engineering at Embry-Riddle 

Aeronautical Univerisity, Prescott, Arizona), if he could recommend someone 

who would be both capable of and interested in doing the analysis. Don 

responded with two names. After a few days of working our way through their 

spam filters, I have established contact with Mark Sensmeier, an Assistant 

Professor of Engineering with a B.S. in Aeronautical and Astronautical 

Engineering from Purdue University and a Ph.D. in Engineering Mechanics  

from Virginia Polytechnic Institute and State University. He is interested 

and we are planning to talk later this week about the problem.



Assuming that our talks are productive, my plan is to approach the List 

again to solicit real cash (as opposed to expressions of interest) so that 

we can develop some sort of contract for the work to be done and the amount 

to be paid. Don suggested that it might be "great fun" to test an actual 

wing in their structures lab. With a bit of luck, I may finish my right 

wing in an appropriate time frame, and I *might* be willing to have them do 

some (non-destructive) testing on my wing. We will have to wait and see if 

that looks to be worthwhile.



I would envision establishing a bank account for something like the "Zenith 

Builders Analysis Group" to handle the money. There are two other 601 

builders in my neighborhood, one of whom could provide a second signature 

on all checks          Be a better friend, newshound, and   [quote][b]

TxDave

Joined: 22 Jul 2006
Posts: 168
Location: Temple, TX

Posted: Tue Apr 22, 2008 2:51 pm Post subject: Re: 601XL Wing Failure 4/7/2008

"The left wing was bent upward (in the positive direction) at the wing root approximately 90 degrees, with the remainder wrapped around the top of the airplane....Detailed examination of the left wing revealed that the lower main wing spar cap was fractured at the wing root." Quote from NTSB preliminary report.

Not my words, not the words of an "eye witness", and not a bit of speculation on my part.



SOMETHING IS NOT RIGHT!! My 2 cents worth. Go ahead, flame away.



Dave Clay

601 CRASH.jpg

Description:

Filesize:

465.14 KB

Viewed:

1079 Time(s)

purplemoon99(at)bellsouth
Guest

Posted: Tue Apr 22, 2008 2:55 pm Post subject: 601XL Wing Failure 4/7/2008

---

purplemoon99(at)bellsouth
Guest

Posted: Tue Apr 22, 2008 3:02 pm Post subject: 601XL Wing Failure 4/7/2008

Terry , sounds like you are doing your homework.I am willing to help with 

money support. we  should ask matt if he would be willing to handle the 

money,I think he is a stand-up guy and also netural party that we all know 

Joe N101HD  601XL/RAM

---

ggower_99(at)yahoo.com
Guest

Posted: Tue Apr 22, 2008 6:31 pm Post subject: 601XL Wing Failure 4/7/2008

Hello No-name (unsigned messages),

   

  Please, Lets hold on a minute.  First  there is no Official Confirmation about a wing failure in this particular accident,    in the first place.   

   

  Second, We (all over the world)  that are pilots (or at least we can control an airplane fairly acceptable),  just need to read the newspapers or watch the news in the TV  of any accident aviation related, to see the most far from reality  facts there.

   

  Some times are not really "bad intention" from the reporter.

  What they say (news men)  in their favor is that the news guys only writes what the witness (most of the time with cero aviation knowlege) "told him", they keep the tape as proof,   plus they mght add a little "imagination", "personal research" and "aviation related words he thinks he knows"   and the final result is really  strange, sometimes even "comical"  for us pilots,  that have a liitle bit or real aviation knowledge.

   

  Remember also that aviation accidents and artist divorces  Sells newspapers, this sells comercial spotts, etc     So they need to make the report "Interesting", for say the least.

   

  What we are all doing right now Here in the List, is waiting  for the official results,  given that NON ONE OF US in the list, have the credentials or know facts first hand,  to even THINK  about the enginering design of the airplane or less about the  experience or knowledge  or medical condition of the pilot in the moment of the accident.

  SIMPLY because we were not there or know nothing about this.

   

  Acting like you are now can be embaracing, because in my city, (talking without facts) is  only admited to ladies in the market or at the laundry shop...  

   

  I will beg you to wait a little,  like all of us to read from the Real Source  before having to say Im Sorry, my bad....  

  Also we PILOTS (if your are one(?) need to show respect for other pilots and airplane designers,  this is first of all not talking as truth what YOU are not sure is fact, mostly if  this is doing harm to them, in any way.

   

  Saludos

  Gary Gower  (My real name)

  Flying from Chapala, Mexico.

  701 912S

  Building a 601 XL  Jab 3300  Fuselage finished.

  DO NOT ARCHIVE.    SORRY, MY APOLOGIZE,  BUT I NEEDED TO SAY THIS 

   

  



Matt Ronics <e_jocular(at)yahoo.com> wrote:

   	  Quote: 	
		  --> Zenith-List message posted by: "Matt Ronics" 

larry(at)macsmachine.com wrote:

 	  Quote: 	
		   I'd 

 still contend that people that stay with the plans and and build 

 strictly to the drawings are never going to see a problem. If you read 

 the ntsb records for the 601 of recent, you'd probably come to the same 

 conclusion.

 


	




The accident discussed here involves a plane that was manufactured by the Czech Aircraft Works (I don't know if one would call this a factory built or not). I don't know anything about Czech, but insofar as they previously manufactured aircraft under agreement with Zenith, I would ASSuME that Czech could manufacture an aircraft with at least the competency of the average homebuilder.





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=178510#178510

	


         Be a better friend, newshound, and  [quote][b]

Matt Ronics

Joined: 30 Apr 2007
Posts: 22

Posted: Tue Apr 22, 2008 7:39 pm Post subject: Re: 601XL Wing Failure 4/7/2008

 	  ggower_99(at)yahoo.com wrote: 	
		  Hello No-name (unsigned messages),

   

  Please, Lets hold on a minute.  First  there is no Official Confirmation about a wing failure in this particular accident 	




  For reasons some people such as yourself can't understand, some of us have professional and/or personal reasons not plaster our name on the internet.  I'm not a troll and I don't work in the airplane business.  I'm not an agent provocateur.  I am a 701 builder bewildered by the lackadaisical attitude on this subject both by the designer and some of the builders.   I am a PPL and have completed a previous homebuilt.  I have no concern about the 601HD/S or 701.



Now just what kind of "Official Confirmation" do you need Gary?  Just what exactly?  What kind of letterhead?  What internet domain?  Who needs to knock on your door?  How many death certificates?  Just what kind of evidence would convince you?   



  I'm not trying to kid myself and others that the half-finished XL in my garage is safe because--I don't have one. 



  A few months ago several Zenith builders said "let's wait for the results."  In the mean time, it APPEARS that we have lost another soul in an accident that may have been preventable.

ggower_99(at)yahoo.com
Guest

Posted: Tue Apr 22, 2008 9:59 pm Post subject: 601XL Wing Failure 4/7/2008

Hello List,

   

  My sincere apologize to all of you,  Should have keept my temper...  Sorry for this posts, yes, we all are waiting for oficial report,  I will not post anything about this matter, Good or Bad, until  a serious report is here.    

   

  Not my type of posts,  probably a result of the normal pressure in everyday work,  well hope you all forgive me...  I will try not to happen anymore.

   

  Saludos

  Gary Gower

  Flying from Chapala. Mexico

  Back to building the 601 XL....  

  Do not Archive.



Gary Gower <ggower_99(at)yahoo.com> wrote:

  [quote]   Hello No-name (unsigned messages),

   

  Please, Lets hold on a  minute.  First  there is no Official Confirmation about a wing failure in this particular accident,    in the first place.   

   

  Second, We (all over the world)  that are pilots (or at least we can control an airplane fairly acceptable),  just need to read the newspapers or watch the news in the TV  of any accident aviation related, to see the most far from reality  facts there.

   

  Some times are not really "bad intention" from the reporter.

  What they say (news men)  in their favor is that the news guys only writes what the witness (most of the time with cero aviation knowlege) "told him", they keep the tape as proof,   plus they mght add a little "imagination", "personal research" and "aviation related words he thinks he knows"  and the final result is really  strange, sometimes even "comical"  for us pilots,   that have a liitle bit or real aviation knowledge.

   

  Remember also that aviation accidents and artist divorces  Sells newspapers, this sells comercial spotts, etc     So they need to make the report "Interesting", for say the least.

   

  What we are all doing right now Here in the List, is waiting  for the official results,  given that NON ONE OF US in the list, have the credentials or know facts first hand,  to even THINK  about the enginering design of the airplane or less about the  experience or knowledge  or medical condition of the pilot in the moment of the accident.

  SIMPLY because we were not there or know nothing about this.

   

  Acting like you are now can be embaracing, because in my city, (talking without facts) is only admited to ladies in the market or at the laundry shop...  

   

   I will beg you to wait a little,  like all of us to read from the Real Source  before having to say Im Sorry, my bad....  

  Also we PILOTS (if your are one(?) need to show respect for other pilots and airplane designers,  this is first of all not talking as truth what YOU are not sure is fact, mostly if  this is doing harm to them, in any way.

   

  Saludos

  Gary Gower  (My real name)

  Flying from Chapala, Mexico.

  701 912S

  Building a 601 XL  Jab 3300  Fuselage finished.

  DO NOT ARCHIVE.    SORRY, MY APOLOGIZE,  BUT I NEEDED TO SAY THIS 

   

  



Matt Ronics <e_jocular(at)yahoo.com> wrote:

   	  Quote: 	
		  --> Zenith-List message posted by: "Matt Ronics"  

larry(at)macsmachine.com wrote:

 	  Quote: 	
		   I'd 

 still contend that people that stay with the plans and and build 

 strictly to the drawings are never going to see a problem. If you read 

 the ntsb records for the 601 of recent, you'd probably come to the same 

 conclusion.

 


	




The accident discussed here involves a plane that was manufactured by the Czech Aircraft Works (I don't know if one would call this a factory built or not). I don't know anything about Czech, but insofar as they previously manufactured aircraft under agreement with Zenith, I would ASSuME that Czech could manufacture an aircraft with at least the competency of the average homebuilder.





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=178510#178510

	
      Be a better friend, newshound, and [quote][b]Be a better friend, newshound, and  [quote][b]

Jaybannist(at)cs.com
Guest

Posted: Wed Apr 23, 2008 4:39 am Post subject: 601XL Wing Failure 4/7/2008

Gary,



Right on Amigo!  It is, as we say North of the border, the blind leading the blind. And guess where that leads.



Jay in Dallas

Do not archive

Gary Gower <ggower_99(at)yahoo.com> wrote:



 	  Quote: 	
		   Hello No-name (unsigned messages),

   

  Please, Lets hold on a minute.  First  there is no Official Confirmation about a wing failure in this particular accident,    in the first place.

jmaynard

Joined: 27 Feb 2008
Posts: 394
Location: Fairmont, MN (FRM)

Posted: Wed Apr 23, 2008 5:31 am Post subject: 601XL Wing Failure 4/7/2008

On Tue, Apr 22, 2008 at 08:39:29PM -0700, Matt Ronics wrote:

 	  Quote: 	
		   For reasons some people such as yourself can't understand, some of us have

 professional and/or personal reasons not plaster our name on the internet. 


	


As a minor celebrity, I've got as much reason as anyone to want to divorce

myself from my words. My sense of integrity does not allow me to do so.



 	  Quote: 	
		   I'm not a troll and I don't work in the airplane business.


	


Prove it.



 	  Quote: 	
		   I'm not trying to kid myself and others that the half-finished XL in my

 garage is safe because--I don't have one.


	


I'm not either, even though I've got more reason than a lot of folks to want

to be sure - since I'm paying a six-figure sum to AMD for my Zodiac, above

and beyond the common factor of it being my butt in the cockpit. I'll

readily admit that I won't have the years of effort invested that most of

the folks on here do, however. (I'm jealous of those who are building:

they'll know their aircraft in a way I never will.)



 	  Quote: 	
		   A few months ago several Zenith builders said "let's wait for the

 results." In the mean time, it APPEARS that we have lost another soul in

 an accident that may have been preventable.


	


True. OTOH, all we can do now is speculate, and that's not going to be any

better at producing a fix if one is needed.

-- 

Jay Maynard, K5ZC                   http://www.conmicro.com

http://jmaynard.livejournal.com      http://www.tronguy.net

Fairmont, MN (FRM)                        (Yes, that's me!)

AMD Zodiac CH601XLi N55ZC (ordered 17 March, delivery 2 June)

_________________
Jay Maynard, K5ZC
AMD Zodiac XLi N55ZC

William Dominguez

Joined: 09 Apr 2008
Posts: 118

Posted: Wed Apr 23, 2008 6:11 am Post subject: 601XL Wing Failure 4/7/2008

Guys, there is an official report. Perhaps you missed them. Here it is:



 	  Quote: 	
		  [url=http://www.ntsb.gov/NTSB/brief.asp?ev_id 080421X00519&key=1]http://www.ntsb.gov/NTSB/brief.asp?ev_id 080421X00519&key=1[/url]William DominguezZodiac 601XL PlansMiami Floridahttp://www.geocities.com/bill_dom 	




Jaybannist(at)cs.com wrote:[quote] --> Zenith-List message posted by: Jaybannist(at)cs.com



Gary,



Right on Amigo!  It is, as we say North of the border, the blind leading the blind. And guess where that leads.



Jay in Dallas

Do not archive

Gary Gower  wrote:



[quote] Hello No-name (unsigned messages),

   

  Please, Lets hold on a minute.  First  there is no Official [quote][b]

_________________
William Dominguez
Zodiac 601XL Plans
Miami Florida
http://www.geocities.com/bill_dom

Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Wed Apr 23, 2008 8:58 am Post subject: Re: 601XL Wing Failure 4/7/2008

First let me fix the bad link



http://www.ntsb.gov/ntsb/brief.asp?ev_id=20080421X00519&key=1



and if that doesn't work here's a TinyURL http://tinyurl.com/6k5g9o



That is a preliminary report and makes no ruling on the cause of the accident.



The first line of the report states, "This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed."



 	  William Dominguez wrote: 	
		  Guys, there is an official report. Perhaps you missed them. Here it is:

_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

mirko

Joined: 12 Jul 2008
Posts: 2

Posted: Sun Jul 13, 2008 12:58 am Post subject: Re: 601XL Wing Failure 4/7/2008

Hi there, I'm also a concern zodiac builder in Australia. My Zodiac 601 XL is built, it took lots of money/time and ready for its first flight. But now hearing all these new developments is making me a little nerves. The flatter(possible ailerons not balanced) theory seems to stick with me. I agree, static tests alone is not the whole answer. Has there been any more news regarding the Wing Structure.

gfmjr_20(at)HOTMAIL.COM
Guest

Posted: Sun Jul 13, 2008 3:15 am Post subject: 601XL Wing Failure 4/7/2008

Mirko

   If you built your plan according to the plans go fly and enjoy it.  Keep your flying within the plane's capabilities and have a great experience knowing you built it.

  

 gotta run --flying my Zodiac to a flyin at one of the prettiest grass strips on the coast of New England.

  

 George May

 601XL 912s----237hrs



 	  Quote: 	
		   Subject: Re: 601XL Wing Failure 4/7/2008

 From: mirko(at)bytecorp.com.au

 Date: Sun C 13 Jul 2008 01:58:37 -0700

 To: zenith-list(at)matronics.com

 

 --> Zenith-List message posted by: "mirko" <mirko(at)bytecorp.com.au>

 

 Hi there C I'm also a concern zodiac builder in Australia. My Zodiac 601 XL is built C it took lots of money/time and ready for its first flight. But now hearing all these new developments is making me a little nerves. The flatter(possible ailerons not balanced) theory seems to stick with me. I agree C static tests alone is not the whole answer. Has there been any more news regarding the Wing Structure.

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=192436#192436

 

 

 

 

 

=====================
	


 	  Quote: 	
		   _====================

 

 

 


	


The i’m Talkaton. Can 30-days of conversation change the world? Find out now.  [quote][b]

Display posts from previous:

	Matronics Email Lists Forum Index -> Zenith-List	All times are GMT - 8 Hours Goto page 1, 2, 3 Next
Page 1 of 3

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum