# STC SA3-71

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Graham Flying Service, United States
- Description: Continental E-185 engine with Hartzell HC12X20-7/8428-1 propeller.
- Applied: March 19, 1957
- Status date: July 25, 1957
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-804](https://openairdocs.org/tcds/A-804)
- Certificate PDF: https://openairdocs.org/files/sha256/44/3c/443c0a0c708a304f75ef4697e44f3b8923ade4d83df5d41265e3855d089e69af
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/54D6BED107F822AC862570CB0059FE36.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3-71

## ADs that name it (0)

None.

## Approved models (1)

- Luscombe Aircraft Corporation 11A ([TCDS A-804](https://openairdocs.org/tcds/A-804))

## What the certificate says

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

## Every issue (1)

- July 25, 1957: Issued, Current. [certificate](https://openairdocs.org/files/sha256/44/3c/443c0a0c708a304f75ef4697e44f3b8923ade4d83df5d41265e3855d089e69af)

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