The parts manual does not show any doubler between the socket flange and the
skin. In addition to that evidence, the screw size is an AN525-10R7. That
is a structural truss-head size 3 (10-32 threads) Phillips-head screw, with
a grip length of only 1/16" (.0625" long). That strongly implies that there
is no doubler, or else the grip portion of the screw would not pass through
the flange area of the socket as it should. The screw threads would ride
within the flange holes, potentially causing chafing and the formation of
abrasion corrosion.

Congratulations on finding one of these for your plane!

-----Original Message-----
[] On Behalf Of michael dawson
Sent: Thursday, January 19, 2006 2:44 PM
Subject: [BAC-Mail] Installation of Aux Power Plug

I finally found a original Beech "Aerostart' Aux Power outlet and want to
install on my Sundowner. I looked at the drawings in the Parts Manual and
it looks like it mounts directly to the skin of the aircraft. Is this
correct or do you have a "doubbler" of some sort? The drawings in the Parts
Manual is nt very clear on this.

Mike Dawson

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