# STC SA909NE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Country Aviation Inc, United States
- Description: Installation of an engine exhaust sound suppressor (ejector).
- Status date: June 28, 1995
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A14](https://openairdocs.org/tcds/3A14), [TCDS 5A5](https://openairdocs.org/tcds/5A5)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F35E252565DCBD5F85256CC20058EA30.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA909NE

## ADs that name it (0)

None.

## Approved models (6)

- The Cessna Aircraft Company 305A (USAF 0-1A) ([TCDS 5A5](https://openairdocs.org/tcds/5A5))
- The Cessna Aircraft Company 305B (Military T0-1D; 0-1D; 0-1F) ([TCDS 3A14](https://openairdocs.org/tcds/3A14))
- The Cessna Aircraft Company 305C (USAF 0-1E) ([TCDS 5A5](https://openairdocs.org/tcds/5A5))
- The Cessna Aircraft Company 305D (USAF 0-1G) ([TCDS 5A5](https://openairdocs.org/tcds/5A5))
- The Cessna Aircraft Company 305E ([TCDS 3A14](https://openairdocs.org/tcds/3A14))
- The Cessna Aircraft Company 305F ([TCDS 5A5](https://openairdocs.org/tcds/5A5))

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