Today's Message Index:
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1. 06:23 AM - Re: Lycoming Data Plate (Mike)
2. 07:26 AM - Re: Lycoming Data Plate (Wayne Sweet)
Message 1
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| Subject: | Lycoming Data Plate |
The statement below muddies the waters regarding the question of AD
compliance on aircraft certified experimental homebuilt. IF you modify
a certified propeller, engine, airframe, or accessory you may be
required (based on the operation limitation issued during certification)
to return the airplane to Phase I for flight testing and then upon
successful completion of Phase I return the aircraft back to Phase II
and operate the aircraft in accordance to you operating limitations. So
if you have a certified MT propeller and you want to change the shape of
the blades (the following is subject to the limitations issued at
certification, older limitations require submission or notification to
your local FSDO of changes and/or modifications and later limitations
require returning the aircraft to Phase I before operating the airplane
outside of the test flight area) you may make the change fly off the
Phase I testing and return to Phase II upon successful testing. Now
with our newly changed prop, the FAA issues an AD on the original prop
model you are not required to comply. Not because it is exclusive
experimental, but because it is no longer the same prop buy part number
previously listed. Now common sense suggests that if an AD came out and
a potential safety hazard exists then it would make sense to consider
the AD. With homebuilt aircraft always remember that you are the
designer, engineer, and builder. It is up to you to decide what You
want and don't want in your airplane.
Mike Larkin
-----Original Message-----
From: owner-engines-list-server@matronics.com
[mailto:owner-engines-list-server@matronics.com] On Behalf Of Kelly
McMullen
Sent: Monday, November 13, 2006 11:06 AM
Subject: Re: Engines-List: Lycoming Data Plate
It does however note that if the experimental aircraft received its
operating limitations and certificate with a certified engine
installed, then it should get a modified operating limitations when
the engine is modified to make it no longer of approved type design.
It would be wise for the repaiman signing the condition inspection to
have reviewed ADs, so that you know if Lycoming has a crank problem in
same model engine, and you have that crank, that you are risking crank
failure if you don't heed the AD. As in use some common sense to
ensure your engine truly is airworthy.
On 11/13/06, Mike <mlas@cox.net> wrote:
>
> I would just like to add to what was written in the url below as it
> pertains to AD's on experimental aircraft. One point that was missed,
> if the part or assembly was originally certified there is no probation
> regarding modification or change to said parts. Following any change
to
> the parts or assemblies the part would no longer conform to the
original
> part number and design and therfore not be subject to the AD provided
> the logbook (legal document) entry showing the change and or
> modification.
>
> One other note: If you list the Lycoming O-320 as a Warp Space Jumper
> #007 when certifying your airplane and enter it in your log book that
> way, it is no longer a Lycoming O-320 as far a AD's go.
>
> The point I am trying to illustrate above is that AD's are for
certified
> aircraft, engines, propellers, and accessories. Once modified or
> changed they are no longer certified, and therefore not subject to
AD's
> because they are not listed on the AD (put forged pistons in said
> Lycoming O-320(legal as an experimental), it is no longer a Lycoming
> O-320 because forged pistons are not certified and therefore no longer
> subject to the AD because the engine is no longer a Lycoming O-320).
If
> a part is unchanged in all respect as it relates to being certified
then
> the compliance to the AD is mandatory.
>
> Mike Larkin
>
> -----Original Message-----
> From: owner-engines-list-server@matronics.com
> [mailto:owner-engines-list-server@matronics.com] On Behalf Of James R.
> Cunningham
> Sent: Saturday, November 11, 2006 7:45 AM
> To: engines-list@matronics.com
> Subject: Re: Engines-List: Lycoming Data Plate
>
> <jrccea@bellsouth.net>
>
> a url of interest:
>
> http://www.rollanet.org/~mopilots/stlouis/jan2005nws.htm
>
>
> --
> 10/16/2006
>
>
> --
> 10/16/2006
>
>
--
10/16/2006
--
10/16/2006
Message 2
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| Subject: | Re: Lycoming Data Plate |
----- Original Message -----
From: "Mike" <mlas@cox.net>
Sent: Tuesday, November 14, 2006 6:22 AM
Subject: RE: Engines-List: Lycoming Data Plate
> t. With homebuilt aircraft always remember that you are the
> designer, engineer, and builder. It is up to you to decide what You
> want and don't want in your airplane.
>
> Mike Larkin
You left out TEST PILOT AND OPERATOR. An AD is a safety issue that operators
of other than single seat experimentals must consider when inviting
passengers to ride with them.
Wayne
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