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Friends. As I remember the discussion around the AD right, we were faced with the holes only first, then the boroscope got added and later the wing removal method. I just have my wings off and we replaced the one rib found completly rotted away and I was so confident that my Coupe is fine, because the wings look so o.k. inside But not so. See http://home.pacbell.net/hbeil/ercoupe/corrosion.htm Here is what I think. If your Mechanic does not own a boroscope and it is your first center - inspection, remove the wings. With wings removed you can see much more than with the scope and or the holes in the bottom. If you you find corrosion, and be it mild surface corrosion , you will have to remove the wings anyway to be able to work on it. Or you'll have to cut the holes to be able to reach inside. I did not install the inspection holes this time, but I will the next time. With the bottom skin de-riveted we could reach all areas and especially the area behind the rear spar. Without holes - out of reach for anyone. I think the boroscope is good only if you know for sure that all is fine. With just a mirror and a good light, one can look from the inside of the fuselage toward the center section and has a chance to estimate the procedure. Check especially the lighting holes BEHIND the rear spar. The ribs in there are known for causing trouble. I would not even think about buying a boroscope . For that money one can install the holes and is fine for the future. Hartmut Jim Phelps wrote: > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > ----- Original Message ----- > From: "Ed Burkhead" <[EMAIL PROTECTED]> > To: "Coupe-List" <[email protected]> > Sent: Monday, February 17, 2003 9:41 AM > Subject: RE: [COUPERS-FLYIN] Borescopes on the web > > > ----[Please read http://ercoupers.com/disclaimer.htm before following any > advice in this forum.]---- > > > > > > > > Guys, > > > > Obviously I'm missing something here. > > > > As I read it, the AD allowed removal of the wings and the use of a mirror > > and flashlight. $100 extra labor max for reinstalling the wings. Taking > > them off I can do myself. > > ED > My mec. said one must look ahead. and figure which way would be best for > repeated insp. His advice, put the holes in the bottom. If I read the AD > right that way doesn;t need the scope either. I also read that taking the > wings repeatadly off could lead to problems in the attachment points. I > myself really don't know but I agree that someone must had thought they > could sell a lot of high priced scopes so put pressure on the feds to write > it up the way they did. So much for good old americian free entrerprize... > and as always even in inspections like buying coupes BUYER BEWARE.. Jim P > > > > Is that not so? So why spend $1,500--$3,000? > > > > Ed Burkhead > > http://edburkhead.com/ > > [EMAIL PROTECTED] > > > > -----Original Message----- > > From: Jack Lewis [mailto:[EMAIL PROTECTED] > > Sent: Monday, February 17, 2003 8:48 AM > > To: Coupes; [EMAIL PROTECTED] > > Subject: Re: [COUPERS-FLYIN] Borescopes on the web > > > > ----[Please read http://ercoupers.com/disclaimer.htm before following any > > advice in this forum.]---- > > > > > > Lynn: > > > > The one I have meets the FAA requirement, almost. > > It has magnification of 20X > > Has it's own light source > > But does NOT "Artiliticate" > > Cost was a little over $2,000 and to add the Artilitication of 90 > > degrees it > > only cost $1,000 more. (This is required under the AD). > > But I do have a neat TV camera that I can give you a cute > > Video of the little mice as they run back and forward inside the wing. > > > > > > > > I don't think you will find one for under a $1000 and it really looks like > > $1,500 will be the best price, but to meet all the requirements it could > > easily cost $3,000. > > > > Someone may stumble upon on a deal but my research hasn't found it. > > > > Jack > > > > > I already have one of those $299 inspection tools. Unfortunately, > > > it will not meet the requirements of the AD. The AD specifically > requires > > a > > > 150 watt light source, rotation of the scope's tip of at least 40 > degrees, > > > and magnification of approximately 10X at 5 mm. This is why I commented > on > > > the proposed AD before it was issued. I do not believe scopes meeting > > those > > > requirements are readily available for less than $500, as stated in the > > > proposed AD. > > > If you are going to sign your name that you inspected the Coupe > > with a > > > scope, I recommend that you have one that will meet the requirements. > > > (Personally, I could not understand why the FAA would require 10X > > > magnification when you could alternatively cut holes and inspect with > the > > > naked eye) > > > Lynn Nelsen > > > > > > > ========================================================================== == > > == > > To leave this forum go to: http://ercoupers.com/lists.htm > > Search the archives on http://escribe.com/aviation/coupers/ > > > > > > > > > > > ========================================================================== == > == > > To leave this forum go to: http://ercoupers.com/lists.htm > > Search the archives on http://escribe.com/aviation/coupers/ > > > > > > > > ========================================================================== ==== > To leave this forum go to: http://ercoupers.com/lists.htm > Search the archives on http://escribe.com/aviation/coupers/ ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/
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