# STC SA958SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Paul Fournet Air Service Inc., United States
- Description: Replace Continental IO-470-F engine (260 hp) with Continental IO-520-D engine rated at 285 hp continuous and 300 hp at 2850 rpm for takeoff, in accordance with Paul Fournet Air Service Inc. installation instructions dated 9/24/68.
- Status date: August 7, 1968
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A24](https://openairdocs.org/tcds/3A24)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/95D97D8C3460D70E85256CC20058EB4B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA958SW

## ADs that name it (0)

None.

## Approved models (7)

- The Cessna Aircraft Company 185 ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- The Cessna Aircraft Company 185 Series ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- The Cessna Aircraft Company 185A ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- The Cessna Aircraft Company 185B ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- The Cessna Aircraft Company 185C ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- The Cessna Aircraft Company 185D ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- The Cessna Aircraft Company 185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24))

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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.