# STC SA146NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Machen Inc, United States
- Description: Installation of a retractable tail wheel and door assembly
- Applied: January 29, 1972
- Status date: November 19, 1979
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-766](https://openairdocs.org/tcds/A-766)
- Certificate PDF: https://openairdocs.org/files/sha256/0a/f6/0af61b075c476fc876745e0d2692cadf3cd9fadc413cc6000e39abd91356497d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/631BAF5F6BA3010586257AE100548450.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA146NW

## ADs that name it (0)

None.

## Approved models (1)

- Swift Museum Foundation Inc. GC-1B ([TCDS A-766](https://openairdocs.org/tcds/A-766))

## What the certificate says

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

## Every issue (1)

- November 19, 1979: Issued, Current. [certificate](https://openairdocs.org/files/sha256/0a/f6/0af61b075c476fc876745e0d2692cadf3cd9fadc413cc6000e39abd91356497d)

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