Help Needed in Tracking Down STC Letter

[astjp2]

If the Form 337 is stamped in block three, the modification was approved by the FAA. The letter was probably sent to the FAA as basis for the approval and application to your aircraft. I wouldn't sweat it if the Form 337 is in order.
EO

Ed, If its an STC, that would not apply.

[Edwin Otha]

Well if there is a 337 involved there should be some kind of information there. Good luck.
EO

[astjp2]

Well if there is a 337 involved there should be some kind of information there. Good luck.
EO

Ed, it is only used on a field approval, not with DER approved data or STC

https://www.faa.gov/regulations_policies/advisory_circulars/index.cfm/go/document.information/documentID/74418

[PA1195]

Current instructions for completion of FAA Form 337 AC No: 43.9-1F: https://www.faa.gov/documentLibrary/...AC_43.9-1F.pdf

Gary

[Guest]

The DER that I use (he is also an A/P I/A) recommended that I submit his 8110-3 with the 337's so I have done that.

As someone pointed out earlier it is not required but might help later on.

Dave R

[N96337]

As an STC owner, I can sympathize with the STC owners... BUT... not that many years ago, it was common to get an airplane that someone else had modified and there would only be the 337, or if you were really lucky, the 337 and the cover letter or approved aircraft list for that STC.
But here, it seems the STC is no longer supported? In that case, I'd get ahold of the ACO for that STC and talk to them. It IS on file there, and they will try to get in touch with the holder of the STC, and if that fails, they can get you copies of the paperwork that is required. You might have to go through your local FSDO and PMI, but they DO have a copy at the District ACO for that STC.
John

[PA1195]

Once upon a time in Alaska it was common for installers to keep the STC instructions for next time. They became like a deck of baseball cards to be valued and traded as required.

Johns guidance on asking for the ACO's help is positive. I hope it ends up benefitting all.

Gary

[Edwin Otha]

Well I guess if the installer used the 337 for record of the modification he must have been in error. Good luck on your search.
EO

[N46147]

Thanks for the comments all, I have worked with Gary to get the STC letter that I need.

[astjp2]

Well I guess if the installer used the 337 for record of the modification he must have been in error. Good luck on your search.
EO

You need the 337 to record any major modification or repair, only field approvals need to see the fsdo, the others are mailed directly to Oklahoma. Per the requirements of the Faa

[Edwin Otha]

Congratulation on tracking down the needed letter. Some of the information can be tough to come by. Glad you found what you were looking for. When you make a major repair or alteration to the type certificate, like a STC, it needs to be recorded with the FAA. Unfortunately they use the same form to do this, the 337. The STC is recorded on the 337, but a 337 is not a STC.
EO

[N46147]

Well it turns out I was not able to get it tracked down. I am still looking for anyone who has a copy of SA3192SO who would be willing to send it to me.

[PA1195]

From my Post #2: As a start contact Terry Bowden for guideance: http://barnstmr.blogspot.com/2008/11...craft-l-2.html

Gary

[N46147]

Funnily enough, that found the STC I was looking for, even though it was not one of his. So, finally tracked it down. Next step, get in touch with the STC holder and find the permission letter because my S/N isn't on there!

[3Dreaming]

Funnily enough, that found the STC I was looking for, even though it was not one of his. So, finally tracked it down. Next step, get in touch with the STC holder and find the permission letter because my S/N isn't on there!

When was the aircraft modified with the STC?