Aileron Spar

[t30mg]

Well, working on the wings and now the buggered up aileron.

The aileron spar is junk and the spare I got with the project had a mouse chewing on it too extensively for my mechanics approval.

Does anyone here have any experience building one?
Are there spar blanks availible?

Does anyone have a serviceable spar they would like to sell?

Also one of my wing tip bows is bent pretty bad and kinked. Does anyone in the tribe make these?
Anybody have an extra they would like to sell?

Thanks for the help....

Aaron

[astjp2]

Re: Aileron Spar

I went to Home Depot, found a verticle grain clear Douglas fir 1x4, 6-8 grains per inch minimum, no more than 1 in 15" slope, cut the angles to duplicate the original, made the reinforcements, installed the ribs, then glued on reinforcements, drilled and installed leading and trailing edges, made a new spar tip on the belt sander dupliating the original, and assembled. Tim

[t30mg]

Re: Aileron Spar

I went to Home Depot, found a verticle grain clear Douglas fir 1x4, 6-8 grains per inch minimum, no more than 1 in 15" slope, cut the angles to duplicate the original, made the reinforcements, installed the ribs, then glued on reinforcements, drilled and installed leading and trailing edges, made a new spar tip on the belt sander dupliating the original, and assembled. Tim

I was wondering about the approval for this? Did your mechanic sign it?
Are you a mechanic?

My mechanic is not aware of any sections that allow for owner manufactored parts.


I'm not trying to be a jerk here, it's just that my mechanic does not see how it can be legal unless someone can tell us how....

[Guest]

Re: Aileron Spar

Take a look at AC43.13-1b chapter 1 section 1 and have your mechanic read it too.

Here is a link;

http://rgl.faa.gov/Regulatory_and_Guidance_Library%5CrgAdvisoryCircular.nsf/0/99C827DB9BAAC81B86256B4500596C4E?OpenDocument

Dave

[astjp2]

Re: Aileron Spar

FAR 21.303B2 is owner produced part, and I am an IA till the end of the month if I dont get my paperwork in.....If your mechanic is used to working on cessna's, he wont be knowledgeable on our antiquated equipment. Tim

http://forums.amtonline.com/showthread.php?1189-FAR21.303-b-2-Owner-produced-parts&

[N96337]

Re: Aileron Spar

Sounds like you need a more infomed mechanic! That's pretty basic stuff that he/she should've learned when getting a license! I'm always amazed at what basic stuff is asked at IA refresher seminars....and that there are so many out there that have no knowledge of FAR's, yet still are maintaining aircraft!
John

[Guest]

Re: Aileron Spar

Paragraph 1-41 of Chapter 1 will be of great interest to you.

Also FAR 65.81 (a)

[Robert Lees]

Re: Aileron Spar

Aaron, the other replies are quite correct.

If you want the mechanism of making aileron spars yourself (which under owner-produced parts rules you are allowed) then here's my blog of the ins and outs.

I bought my spar blanks from Aircraft Spruce. For enough to do both aileron spars you need: Part numbers:
2 off 02-12300 (Spar stock 1/2" thick x 3" wide x 96" long) and
1 off 02-38300 (Spar stock 3/8" thick x 3" wide x 36" long)...this is enough timber to do the centre reinforcing piece for both aileron spars.

Rob

[stearman3]

Re: Aileron Spar

News flash for the Tribe.
Read 21.303 carefully. It does NOT say owners can produce anything.
All it says is that PMA requirements don't apply to owner produced parts!!!
So, you ask, what do we do????
Read 21.305.
Part 21 is all manufacturing,certification, and alteration.
It really doesn't address much about maintenance.
What we do as mechanics is REPAIR stuff, or alter stuff.
If that aileron has a bad spar, REPAIR it by fabricating a replcement spar
I.A.W. AC 43.13-1b and forget all this part 21 nonsense.
You didn't manufacture an aileron, you just repaired it under part43.

Not tryin'to rock the boat, just sayin'............

Once upon a time, I was an FAA Airworthiness Inspector.
The Faa Certification folks didn't like me much........

[t30mg]

Re: Aileron Spar

Sounds like you need a more infomed mechanic! That's pretty basic stuff that he/she should've learned when getting a license! I'm always amazed at what basic stuff is asked at IA refresher seminars....and that there are so many out there that have no knowledge of FAR's, yet still are maintaining aircraft!
John

Quick, without looking it up,,,

Putting N-numbers on a 1959 airplane, do I need 12" numbers or can I get by with 3"??

[Guest]

Re: Aileron Spar

Quick, without looking it up,,,

Putting N-numbers on a 1959 airplane, do I need 12" numbers or can I get by with 3"??

130 mph with coconut!

ahh...

Red!

ahh....

no Blue!


if you are not a Monty Python fan this may not make sense

if your are a Monty Python fan then you will think it makes sense, but really doesn't

[rammon3]

Re: Aileron Spar

Nobody expects the Spanish Inquisition!

[Robert Lees]

Re: Aileron Spar

Monty Python

The worst thing to exude from British television (apart from the live broadcasts of the Houses of Parliament, of course).

[Guest]

Re: Aileron Spar

The worst thing to exude from British television (apart from the live broadcasts of the Houses of Parliament, of course).

lol

[astjp2]

Re: Aileron Spar

21.303 Replacement and modification parts.
(a) Except as provided in paragraph (b) of this section, no person may produce a modification or replacement part for sale for installation on a type certificated product unless it is produced pursuant to a Parts Manufacturer Approval issued under this subpart.

(b) This section does not apply to the following:

(1) Parts produced under a type or production certificate.

(2) Parts produced by an owner or operator for maintaining or altering his own product.

News flash for the Tribe.
Read 21.303 carefully. It does NOT say owners can produce anything.
All it says is that PMA requirements don't apply to owner produced parts!!!
So, you ask, what do we do????
Read 21.305.
Part 21 is all manufacturing,certification, and alteration.
It really doesn't address much about maintenance.
What we do as mechanics is REPAIR stuff, or alter stuff.
If that aileron has a bad spar, REPAIR it by fabricating a replcement spar
I.A.W. AC 43.13-1b and forget all this part 21 nonsense.
You didn't manufacture an aileron, you just repaired it under part43.

Not tryin'to rock the boat, just sayin'............

Once upon a time, I was an FAA Airworthiness Inspector.
The Faa Certification folks didn't like me much........