# STC SA3-664

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Parker Hannifin Corp, United States
- Description: Install Model 113A6, 200CW-6 or212CW-6 dry vacuum pump and instrument vacuum system.
- Status date: June 16, 1986
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CC0E56CE0E12F1D685256CC20008CD00.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3-664

## ADs that name it (0)

None.

## Approved models (7)

- The Cessna Aircraft Company 172 ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172A ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172C ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172D ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172E ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 172F (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

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