# STC SA3-104

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sabreliner Aviation LLC, United States
- Description: Installation of Curtis-Wright C-46 pilot and copilot seats.
- Applied: September 26, 1957
- Status date: March 7, 2014
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-669](https://openairdocs.org/tcds/A-669)
- Certificate PDF: https://openairdocs.org/files/sha256/68/63/68638e49dc5d161d6fcb4361ccd623ec0fcfb525b493933f5cac27f958c98d20
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A322B9C9915774E886257E65006DF1F4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3-104

## ADs that name it (0)

None.

## Approved models (4)

- The Boeing Company DC3C-R-1830-90C ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3C-S1C3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3C-S4C4G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3C-SC3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title SA3-104 Sabreliner Aviation, LLC 1390 Highway H Perryville, MO 63775 3 Civil Air Regulations.

2 A-669 DC-3C Installation of Curtiss-Wright C-46 Pilot and Copilot Seats, P/N 20-561-3006. Data required: Remmert-Werner Drawing DC3-91001, or later FAA approved revision.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft.

Douglas September 26, 1957 October 1, 1970; March 25, 1981; June 30, 1983, March 7, 2014 October 3, 1957 Grant E. Youngdahl Program Manager Wichita Aircraft Certification Office

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

SA3-104 2

## Every issue (1)

- March 7, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/68/63/68638e49dc5d161d6fcb4361ccd623ec0fcfb525b493933f5cac27f958c98d20)

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