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#1
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Help with Grob Needed
We're having some difficulty getting repairs done on our grob 103. we have
an aileron with a diagonal crease in it from the trailing interior edge to the leading outside edge of the aileron. Anyway, Grob America here in Ohio has taken our wings, but with pessimistic views. They have said they've had trouble with talking to Grob on what needs to be done. I was wondering if anyone out there has any contacts directly to Grob to get something done. Or if anyone knows anyone out there with information on what to do and what needs to be done, whether it is to be replace fixed or whatnot. Thanks in advance to anyone who can help. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#2
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Scott,
More information, please. How was the aileron damaged and exactly what is the damage? Ailerons can be repaired as long as the total weight and trailing edge weight doesn't exceed the specs. JJ Sinclair |
#3
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We're not sure how it was damaged. It looks like it took time to develop.
The only damage is the stress line ,I had called it a crease, it's on the bottom only and it is a line popped out. Almost as if someone took a steel rod with a lot of pressure from the insides and drug it in the manner I described before. Grob America hasn't been not wanting to work on this at all because of delays/no help from Grob Germany. They told us to just keep flying it. We flew it most of the summer with this damage, but our A&P wont sign it off unless this is fixed. The only thing we can see the damaged coming from is turning hard while flying to fast. We just want to be able to fly it this spring. "JJ Sinclair" wrote in message ... Scott, More information, please. How was the aileron damaged and exactly what is the damage? Ailerons can be repaired as long as the total weight and trailing edge weight doesn't exceed the specs. JJ Sinclair -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
#4
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If memory serves me right, the lower skin is made up of 3 layers of thin cloth
(92110) and has no foam core. Where this thin skin meets the stronger top skin, a gelgoat crack may develop. I would grind away some gelgoat in the crease area and see if the glass fibers are broken. If not, you are safe to keep flying it, its just a cosmetic repair. If the fibers are broken, I would ask Blufton to repair it. Note, after repairs one must weigh the aileron and then suspend it on its hinges and check for trailing edge weight to be within specs. Additional counter balance may be added to the area forward of the hinge line as long as total aileron weight is not exceeded. JJ Sinclair |
#5
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The Grob 103 Twin II Repair Instructions Manual I have, dated
September 1981, says the lower surface of the aileron is 2 layers 92125 diagonal. No core material. All the rest of what JJ said, I would say is good and true. Does this mark run the full span of the aileron, or at roughly 45 degrees to the aileron? You said it goes from the trailing interior edge to leading outside edge of the aileron. It could simply be a crack in the finish at the edge of an overlap joint of the outer layer of glass structure. Steve Leonard |
#6
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That is correct about the line.
"Steve" wrote in message om... The Grob 103 Twin II Repair Instructions Manual I have, dated September 1981, says the lower surface of the aileron is 2 layers 92125 diagonal. No core material. All the rest of what JJ said, I would say is good and true. Does this mark run the full span of the aileron, or at roughly 45 degrees to the aileron? You said it goes from the trailing interior edge to leading outside edge of the aileron. It could simply be a crack in the finish at the edge of an overlap joint of the outer layer of glass structure. Steve Leonard -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
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