Just a shot in the dark.....
I'm in the process of overhauling the O-320-E2C (150 hp) in my '68 Musketeer
Sport, model 19A, s/n MB-318. There is an STC available from Lycon to
install pistons in the O-32-E2C to increase output to 160 hp. This has been
done many times in the past on these airframes however the FAA has changed
the rules.

I need a 337 to install the upgraded engine on the airframe. I have two
examples of similar 337 however I now need copies of the "regional
engineering concurrence that the inspector had at his disposal in order for
him to approve the alteration".

Can anyone decipher that and point me in the direction of getting my grubby
little hands on this document?

Thanks.

dlevy wrote:
> Just a shot in the dark.....
> I'm in the process of overhauling the O-320-E2C (150 hp) in my '68
Musketeer
> Sport, model 19A, s/n MB-318. There is an STC available from Lycon
to
> install pistons in the O-32-E2C to increase output to 160 hp. This
has been
> done many times in the past on these airframes however the FAA has
changed
> the rules.
>
> I need a 337 to install the upgraded engine on the airframe. I have
two
> examples of similar 337 however I now need copies of the "regional
> engineering concurrence that the inspector had at his disposal in
order for
> him to approve the alteration".
>
> Can anyone decipher that and point me in the direction of getting my
grubby
> little hands on this document?
>
It sounds like your trying to gather info required for a field
approval. If you bought the STC from Lycon, it should have all the
data necessary for your mechanic to fill out the 337. The whole point
of the STC is that they are pre-approved if you install it according to
the STC documentation.

I may be wrong here, but every STC I've had installed in a plane did
not require any other documentation (for the 337) other than what was
provided with the STC.

John Galban=====>N4BQ (PA28-180)

> wrote in message
oups.com...

> It sounds like your trying to gather info required for a field
> approval. If you bought the STC from Lycon, it should have all the
> data necessary for your mechanic to fill out the 337. The whole point
> of the STC is that they are pre-approved if you install it according to
> the STC documentation.
>
> I may be wrong here, but every STC I've had installed in a plane did
> not require any other documentation (for the 337) other than what was
> provided with the STC.
>
> John Galban=====>N4BQ (PA28-180)
>


You need 2 STCs. One for the engine, and one to install the higher power
engine on the airframe.

When I did the same thing to my Cherokee, I got the engine STC from
Mattituck and the Airframe STC from AMR&D.

If you don't have an STC, you need to get a field approval.

Yep.

"Steve Foley" > wrote in message
news:vJH_d.8906$Ue6.6713@trndny04...
>
>
> You need 2 STCs. One for the engine, and one to install the higher power
> engine on the airframe.
>
> When I did the same thing to my Cherokee, I got the engine STC from
> Mattituck and the Airframe STC from AMR&D.
>
> If you don't have an STC, you need to get a field approval.
>
>

dlevy wrote:
> Yep.
>

OK, I get it now. I was assuming that you had the airframe STC as
well as the engine STC. Is there no STC available for your airframe?

John Galban=====>N4BQ (PA28-180)

There is no STC for the installation of the modified engine in the airframe.

> wrote in message
oups.com...
>
> OK, I get it now. I was assuming that you had the airframe STC as
> well as the engine STC. Is there no STC available for your airframe?
>
> John Galban=====>N4BQ (PA28-180)
>

Check out www.beechaeroclub.org or ask the group at
I believe they have the 337


dlevy wrote:

>Just a shot in the dark.....
>I'm in the process of overhauling the O-320-E2C (150 hp) in my '68 Musketeer
>Sport, model 19A, s/n MB-318. There is an STC available from Lycon to
>install pistons in the O-32-E2C to increase output to 160 hp. This has been
>done many times in the past on these airframes however the FAA has changed
>the rules.
>
>I need a 337 to install the upgraded engine on the airframe. I have two
>examples of similar 337 however I now need copies of the "regional
>engineering concurrence that the inspector had at his disposal in order for
>him to approve the alteration".
>
>Can anyone decipher that and point me in the direction of getting my grubby
>little hands on this document?
>
>Thanks.
>
>
>
>

Done all that.

"Ronald Limbaugh" > wrote in message
hlink.net...
> Check out www.beechaeroclub.org or ask the group at
> I believe they have the 337
>