# STC SA3-451

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aircraft Development Co, United States
- Description: Speed kit.
- Applied: November 13, 1959
- Status date: January 30, 1996
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799)
- Certificate PDF: https://openairdocs.org/files/sha256/51/d8/51d80ac64b93fdfe2c725df1aa633ed5fa58e6480731944e2bf28e6fd132fd31
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7332274FC55DB1E786258159004C2AE9.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3-451

## ADs that name it (0)

None.

## Approved models (2)

- The Cessna Aircraft Company 170A ([TCDS A-799](https://openairdocs.org/tcds/A-799))
- The Cessna Aircraft Company 170B ([TCDS A-799](https://openairdocs.org/tcds/A-799))

## What the certificate says

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

## Every issue (1)

- January 30, 1996: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/51/d8/51d80ac64b93fdfe2c725df1aa633ed5fa58e6480731944e2bf28e6fd132fd31)

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