# STC SA1143SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Comisky Engineering Co Inc, United States
- Description: Redesigned muffler assemblies.
- Status date: May 15, 1970
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A19](https://openairdocs.org/tcds/3A19), [TCDS A-768](https://openairdocs.org/tcds/A-768)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/26EAE5E2D66A2DE885256CC10080DED5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1143SW

## ADs that name it (0)

None.

## Approved models (3)

- The Cessna Aircraft Company 120 ([TCDS A-768](https://openairdocs.org/tcds/A-768))
- The Cessna Aircraft Company 140 ([TCDS A-768](https://openairdocs.org/tcds/A-768))
- The Cessna Aircraft Company 150 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.