# STC SA342NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Seaplane Flying Inc, United States
- Description: Installation of Hartzell HC-C2YF-1FB/F8459-6 propeller on a Franklin 6A-350-C2 engine and Edo 248-2440 floats
- Applied: July 20, 1976
- Status date: September 17, 1976
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799)
- Certificate PDF: https://openairdocs.org/files/sha256/d9/03/d903a42ac48eca56c030a5f509fc1e2564f490d6124d1f7e003869b32db2b0bc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3076F524BD96A7D786257AE1005911D5.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA342NW

## ADs that name it (0)

None.

## Approved models (1)

- 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)

- September 17, 1976: Issued, Current. [certificate](https://openairdocs.org/files/sha256/d9/03/d903a42ac48eca56c030a5f509fc1e2564f490d6124d1f7e003869b32db2b0bc)

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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.