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The photos are now online:
- Jason J Ellingson
From: Paul M. Anton [mailto:[EMAIL PROTECTED]
Sent: Friday, November 03, 2006 12:40 PM
To: [email protected]
Subject: [COUPERS-TECH] SB 32
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I participated in a SB 32 inspection yesterday and would like
to pass on some observations.
We had the wing tanks off and this turned out to be a
good thing. The inspector must place the transducer on the shop head of each
rivet. Since he is reaching way up into the center section, he is essentially
working blind. With the wing tanks off, he can reach around to the manufactured
head of each rivet and touch it while taking a reading. This tells him which
rivet he is on and enables him to insure he checks each and every
rivet.
The space inside the plane is very restricted. The floor
boards need to come out. In addition, the inner panels that cover the sliding
windows need to come out. He absolutely could not get to some rivets with these
in place. Since the seat bottoms need to come out, and the seat back must be
loosened to get the side panels off , I'd remove the seat back also, This would
give the inspector clear access to the center section. Have some plywood on hand
so he can step in the fuselage without damaging the skin.
Jason Ellingson has kindly agreed to post some pictures taken
during the inspection on his website.
This plane is undergoing a restoration. There is some
corrosion that needs to be addressed and the SB 32 compliance was conducted to
insure that the plane was indeed economically repairable. As it turned out, the
spar was in excellent condition. All rivets were intact, as bucked 60 years
ago!
This inspector had done one other Ercoupe and feels that
getting a good inspection is fairly difficult due to the restricted
access.
Cheers:
Paul
N1431A
(A&P IA)
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