# STC SA104NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aero Dyne Corporation, United States
- Description: Replacement of rib stitching with AD 42 ABS-LF aluminum pop rivet (1/8") on elevators, rudder and ailerons
- Applied: January 1, 1974
- Status date: April 15, 1974
- 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/sha256/9e/ec/9eecc2e3cd00e852009de7318a05ccb4f2e1ae1c276d226da88a68f7a9854dd5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/369546553D5DB15B85256CC10080DCE5.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA104NW

## ADs that name it (0)

None.

## Approved models (10)

- The Boeing Company DC3A-S1C3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-S1CG ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-S4C4G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-SC3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-SCG ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- 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))
- The Boeing Company DC3D-R-1830-90C ([TCDS A-669](https://openairdocs.org/tcds/A-669))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- April 15, 1974: Issued, Current. [certificate](https://openairdocs.org/files/sha256/9e/ec/9eecc2e3cd00e852009de7318a05ccb4f2e1ae1c276d226da88a68f7a9854dd5)

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