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bakerocb
Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA
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 Posted: Fri Nov 23, 2007 8:21 pm Post subject: Wilco STC for concorde batteries |
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11/23/2007
Hello Scott, Thank you for your input copied below, but I am not entirely
convinced. If you will go to this web page:
http://www.aircraftspruce.com/catalog/elpages/gillbatt.php
you will find this wording: "Installations not shown on D.O.T. FAA/PMA
listings will require field approval using FAA Form 337 or FAA approved
STC."
Note that it says "FAA form 337" OR "FAA approved STC". This means to me
that one or the other is required, but not both.
Since Wilco has STC SA00638WI for all Raytheon / Beech models 24 (My friend
has a C24R)
I don't see why an FAA Form 337 would be required. Can you please provide a
specific reference to the contrary?
See the page "Wilco held STCs" at this web site.
http://www.wilcoaircraftparts.com/LineCard.htm#
Thanks for your help.
'OC' Says: "The best investment we can make is the effort to gather and
understand knowledge."
-----------------------------------------------------
---
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BobsV35B(at)aol.com
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| Posted: Sat Nov 24, 2007 2:38 am Post subject: Wilco STC for concorde batteries |
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Good Morning OC,
I am certain I have missed something on this thread, but isn't the reference to a 337 rather ambiguous?
If you are going to install something via an STC, you do need to file a 337 showing that they STC'd item was installed. The STC IS the required approved data.
If you ask for a "local" approval, the local FED MAY sign Block Three and that becomes the approved data.
In either case, a 337 IS required to be filed.
Or so it seems to me. What is your interpretation?
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503
In a message dated 11/23/2007 10:23:24 P.M. Central Standard Time, bakerocb(at)cox.net writes:
| Quote: | Note that it says "FAA form 337" OR "FAA approved STC". This means to me
that one or the other is required, but not both.
Since Wilco has STC SA00638WI for all Raytheon / Beech models 24 (My friend
has a C24R)
I don't see why an FAA Form 337 would be required. Can you please provide a
specific reference to the contrary?
|
Check out AOL Money & Finance's list of the hottest products and top money wasters of 2007.
[quote][b]
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gyoung
Joined: 09 Jan 2006
Posts: 211
Location: Republic of Texas
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| Posted: Sat Nov 24, 2007 2:56 am Post subject: Wilco STC for concorde batteries |
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The 337 is the vehicle to document major mods and alterations, which an STC
is by definition. The STC constitutes the approved data for the mod so a 337
referencing one is pretty much a formality. The IA can sign it off without
getting prior FAA approval. Getting that approval on a non-STC 337 can be a
big deal depending on your FSDO but with an STC it is a non event. There's
no reason to fear a 337 for an STC.
Regards,
Greg Young
[quote] --
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rd2(at)evenlink.com
Guest
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| Posted: Sat Nov 24, 2007 7:04 am Post subject: Wilco STC for concorde batteries |
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OC,
I'll second the postings of Old Bob and Greg below on the subject 337-STC.
To summarize:
- 337 is always required when there is a "major" mod/alteration (whatever
the definition of major is). The differences are who needs to sign the 337
in which case.
- When there is an STC AND the aircraft is on the AML (Approved Model List)
of the STC, the IA signs the 337 (one copy goes to the FAA, one copy to the
POH or aircraft manual). No need for an additional FAA approval, the
alteration has already been "pre-approved" by the STC and AML. Practically
a nonevent.
- When there is no STC or the aircraft is not on the AML (even if there is
an STC for another model), a "field approval" is needed - the FAA (FSDO)
must sign the 337.
The above are the rules. Here is the leeway: when a field approval is
needed (see preceding paragraph), the differences lie in the subjective
evaluation by local FSDOs of which items constitute acceptable "major
alterations". Approvals become a bigger deal in the following order: STC
present, but aircraft is not on the AML; no STC, but item is not viewed as
such a "major alteration"; no STC and item is viewed as "too major
alteration" (almost impossible to get field approval).
Any other readings or experiences, please advise.
Rumen
do not archive
_____________________Original message __________________________
(received from BobsV35B(at)aol.com; Date: 05:33 AM
11/24/2007 EST)
________________________________________________________________
Good Morning OC,
I am certain I have missed something on this thread, but isn't the
reference to a 337 rather ambiguous?
If you are going to install something via an STC, you do need to file a 337
showing that they STC'd item was installed. The STC IS the required
approved data.
If you ask for a "local" approval, the local FED MAY sign Block Three and
that becomes the approved data.
In either case, a 337 IS required to be filed.
Or so it seems to me. What is your interpretation?
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503
In a message dated 11/23/2007 10:23:24 P.M. Central Standard Time,
bakerocb(at)cox.net writes:
Note that it says "FAA form 337" OR "FAA approved STC". This means to me
that one or the other is required, but not both.
Since Wilco has STC SA00638WI for all Raytheon / Beech models 24 (My friend
has a C24R)
I don't see why an FAA Form 337 would be required. Can you please provide a
specific reference to the contrary?
The 337 is the vehicle to document major mods and alterations, which an STC
is by definition. The STC constitutes the approved data for the mod so a 337
referencing one is pretty much a formality. The IA can sign it off without
getting prior FAA approval. Getting that approval on a non-STC 337 can be a
big deal depending on your FSDO but with an STC it is a non event. There's
no reason to fear a 337 for an STC.
Regards,
Greg Young
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BobsV35B(at)aol.com
Guest
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| Posted: Sat Nov 24, 2007 7:31 am Post subject: Wilco STC for concorde batteries |
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Good Morning Rumen,
Just a bit of expansion if I may.
The submitting IA will always have to sign that he/she has checked the installation for conformity.
If he/she also does the installation, they would sign as the certificated installing agency.
The only time the FAA signs anything is if they sign Block Three. In that case, the inspector who signs that Block is taking the responsibly as to the suitability of the installation and that becomes the "approved data".
The installing mechanic or repairman will still sign as the installing agency and the submitting IA signs for the conformity of the installation to the approved data whether it is from the Block Three approval of the data submitted or from the STC.
Does that agree with your interpretation?
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503
In a message dated 11/24/2007 9:06:36 A.M. Central Standard Time, rd2(at)evenlink.com writes:
| Quote: | - 337 is always required when there is a "major" mod/alteration (whatever
the definition of major is). The differences are who needs to sign the 337
in which case.
|
Check out AOL Money & Finance's list of the hottest products and top money wasters of 2007.
[quote][b]
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rd2(at)evenlink.com
Guest
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| Posted: Sat Nov 24, 2007 3:36 pm Post subject: Wilco STC for concorde batteries |
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While I am not sufficiently well-versed with Block 3, it sounds logical.
Thanks for the expansion, (Old) Bob.
Rumen
do not archive
_____________________Original message __________________________
(received from BobsV35B(at)aol.com; Date: 10:26 AM
11/24/2007 EST)
________________________________________________________________
Good Morning Rumen,
Just a bit of expansion if I may.
The submitting IA will always have to sign that he/she has checked the
installation for conformity.
If he/she also does the installation, they would sign as the certificated
installing agency.
The only time the FAA signs anything is if they sign Block Three. In that
case, the inspector who signs that Block is taking the responsibly as to
the suitability of the installation and that becomes the "approved data".
The installing mechanic or repairman will still sign as the installing
agency and the submitting IA signs for the conformity of the installation
to the approved data whether it is from the Block Three approval of the
data submitted or from the STC.
Does that agree with your interpretation?
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503
In a message dated 11/24/2007 9:06:36 A.M. Central Standard Time,
rd2(at)evenlink.com writes:
- 337 is always required when there is a "major" mod/alteration (whatever
the definition of major is). The differences are who needs to sign the 337
in which case.
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